we have the same problem, i disabled all other plugin and no maps shows
The log in debug for weathermap i'ts
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Weathermap 0.82 in da house
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Engaging Weathermap DEBUG mode
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Iterating all maps.
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Map: /opt/cacti-0.8.6h/plugins/weathermap/configs/Coldecon.conf -> /opt/cacti-0.8.6h/plugins/weathermap/output/weathermap_3.html & /opt/cacti-0.8.6h/plugins/weathermap/output/weathermap_3.png
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Adding default map colour set.
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Setting bandwidth (100M, 100M)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Saving Default Link: DEFAULT
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Saving Node: node1144504144
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Saving Node: node1144504196
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Saving Node: node1144504212
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Saving Node: node1170350990
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Saving Node: node1170351844
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] RRDTOOL check triggered
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Setting bandwidth (150, 150)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Saving Link: node1170350990-node1144504144
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Setting bandwidth (80M, 80M)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Saving Link: node1170350990-node1144504196
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Setting bandwidth (150M, 150M)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Saving Link: node1170351844-node1170350990
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Already have 7 scales, no defaults added.
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ================== ReadData: Updating link data for all links
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0]
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] New Target: /opt/cacti-0.8.6h/rra/bar_bog_1_traffic_in_64.rrd (/opt/cacti-0.8.6h/rra/bar_bog_1_traffic_in_64.rrd)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadData: Updating link node1170350990-node1144504144 from RRD Target /opt/cacti-0.8.6h/rra/bar_bog_1_traffic_in_64.rrd
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: Target DS names are traffic_in and traffic_out
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: Running: /usr/bin/rrdtool fetch /opt/cacti-0.8.6h/rra/bar_bog_1_traffic_in_64.rrd AVERAGE --start now-800
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] > 1170357300: nan nan
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] > 1170357600: nan nan
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] > 1170357900: nan nan
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] >
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] --
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] --1170357900: nan nan
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: 1: This isn't a number: [nan]
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: 2: This isn't a number: [nan]
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] --1170357600: nan nan
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: 1: This isn't a number: [nan]
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: 2: This isn't a number: [nan]
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] --1170357300: nan nan
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: 1: This isn't a number: [nan]
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: 2: This isn't a number: [nan]
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: Returning (-1,-1)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadData: Link node1170350990-node1144504144, target: /opt/cacti-0.8.6h/rra/bar_bog_1_traffic_in_64.rrd on config line 64 had no valid data
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadData: Setting 0,0
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0]
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] New Target: /opt/cacti-0.8.6h/rra/bar_clo_1_traffic_in_1020.rrd (/opt/cacti-0.8.6h/rra/bar_clo_1_traffic_in_1020.rrd)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadData: Updating link node1170350990-node1144504196 from RRD Target /opt/cacti-0.8.6h/rra/bar_clo_1_traffic_in_1020.rrd
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: Target DS names are traffic_in and traffic_out
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: Running: /usr/bin/rrdtool fetch /opt/cacti-0.8.6h/rra/bar_clo_1_traffic_in_1020.rrd AVERAGE --start now-800
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] > 1170357300: 4.8308706607e+06 5.2714414099e+06
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] > 1170357600: 4.3134062632e+06 4.6806370665e+06
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] > 1170357900: nan nan
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] >
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] --
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] --1170357900: nan nan
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: 1: This isn't a number: [nan]
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: 2: This isn't a number: [nan]
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] --1170357600: 4.3134062632e+06 4.6806370665e+06
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: Found a good line: 1170357600: 4.3134062632e+06 4.6806370665e+06
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] --1170357300: 4.8308706607e+06 5.2714414099e+06
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: Our line is 1170357600: 4.3134062632e+06 4.6806370665e+06
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: Returning (37445096.532,34507250.1056)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadData: Setting 37445096.532,34507250.1056
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0]
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] New Target: /opt/cacti-0.8.6h/rra/bar_ctg_1_traffic_in_1425.rrd (/opt/cacti-0.8.6h/rra/bar_ctg_1_traffic_in_1425.rrd)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadData: Updating link node1170351844-node1170350990 from RRD Target /opt/cacti-0.8.6h/rra/bar_ctg_1_traffic_in_1425.rrd
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: Target DS names are traffic_in and traffic_out
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: Running: /usr/bin/rrdtool fetch /opt/cacti-0.8.6h/rra/bar_ctg_1_traffic_in_1425.rrd AVERAGE --start now-800
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] > 1170357300: 6.4135893695e+06 1.0466171481e+07
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] > 1170357600: 6.3431888343e+06 1.0476727349e+07
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] > 1170357900: nan nan
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] >
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] --
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] --1170357900: nan nan
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: 1: This isn't a number: [nan]
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: 2: This isn't a number: [nan]
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] --1170357600: 6.3431888343e+06 1.0476727349e+07
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: Found a good line: 1170357600: 6.3431888343e+06 1.0476727349e+07
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] --1170357300: 6.4135893695e+06 1.0466171481e+07
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: Our line is 1170357600: 6.3431888343e+06 1.0476727349e+07
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadFromRRD: Returning (83813818.792,50745510.6744)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] ReadData: Setting 83813818.792,50745510.6744
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0]
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] About to write image file. If this is the last message in your log, increase memory_limit in php.ini
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] AllocateScaleColours: KEYTEXT (0,0,0)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] AllocateScaleColours: KEYBG (255,255,255)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] AllocateScaleColours: BG (255,255,255)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] AllocateScaleColours: TITLE (0,0,0)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] AllocateScaleColours: TIME (0,0,0)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] AllocateScaleColours: 1:10 (140,0,255)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] AllocateScaleColours: 10:25 (32,32,255)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] AllocateScaleColours: 25:40 (0,192,255)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] AllocateScaleColours: 40:55 (0,240,0)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] AllocateScaleColours: 55:70 (240,240,0)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] AllocateScaleColours: 70:85 (255,192,0)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] AllocateScaleColours: 85:100 (255,0,0)
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Adding Poly imagemap for node1170350990-node1144504144
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Adding Poly imagemap for node1170350990-node1144504144
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Adding Poly imagemap for node1170350990-node1144504196
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Adding Poly imagemap for node1170350990-node1144504196
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Adding Poly imagemap for node1170351844-node1170350990
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Adding Poly imagemap for node1170351844-node1170350990
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Node->Draw: Metrics are: 3 42 x 13 -> 42 x 13
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Node->Draw: Metrics are: 3 28 x 13 -> 28 x 13
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Node->Draw: Metrics are: 3 56 x 13 -> 56 x 13
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Node->Draw: Metrics are: 3 56 x 13 -> 56 x 13
02/01/2007 02:24:56 PM - WEATHERMAP: Poller[0] Node->Draw: Metrics are: 3 63 x 13 -> 63 x 13
i note that the html file don't apeer
c
acti:# ls -la /opt/cacti-0.8.6h/plugins/weathermap/output/weathermap_3.htm
/bin/ls: /opt/cacti-0.8.6h/plugins/weathermap/output/weathermap_3.htm: No such file or directory
cacti: # ls -la /opt/cacti-0.8.6h/plugins/weathermap/output/
total 12
drwxr-xr-x 2 tc www 4096 2007-02-01 14:57 .
drwxr-xr-x 7 tc users 4096 2007-02-01 14:37 ..
-rw-r--r-- 1 tc users 33 2007-02-01 14:58 weathermap_3.png
Now how can solve this???