snmpget works, but cacti.log reports timout, graphs blank

[nccuss17]

cacti 0.8.8b (the all inclusive bundle from bsod2600 http://www.cacti.net/downloads/packages ... 0.8.8b.exe
on a windows 7 64bit machine, using the IIS option from BSOD's installer.

target device is a dell powerconnect 5448 on the same LAN.

I increased the SNMP timeouts to 5000 (default is 500).

c:\>snmpget -c public -v 1 10.x.x.2 .1.3.6.1.2.1.2.2.1.16.7
returns:
IF-MIB::ifOutOctets.7 = Counter32: 1437068271


However c:\inetpub\wwwroot\cacti\log\cacti.log reports (this keeps getting repeated every 5 minutes), when in debug mode:
10/08/2014 11:00:01 AM - CMDPHP: Poller[0] Host[4] PING: TCP Ping Success (4 ms)
10/08/2014 11:00:01 AM - CMDPHP: Poller[0] Host[4] RECACHE: Processing 1 items in the auto reindex cache for '10.x.x.2'.
10/08/2014 11:00:01 AM - CMDPHP: Poller[0] Host[4] RECACHE DQ[1] OID: .1.3.6.1.2.1.1.3.0
10/08/2014 11:00:01 AM - CMDPHP: Poller[0] WARNING: SNMP Get Timeout for Host:'10.x.x.2', and OID:'.1.3.6.1.2.1.2.2.1.16.7'
10/08/2014 11:00:01 AM - CMDPHP: Poller[0] Host[4] DS[44] WARNING: Result from SNMP not valid. Partial Result: U
10/08/2014 11:00:01 AM - CMDPHP: Poller[0] Host[4] DS[44] SNMP: v1: 10.x.x.2, dsname: traffic_out, oid: .1.3.6.1.2.1.2.2.1.16.7, output: U
10/08/2014 11:00:02 AM - CMDPHP: Poller[0] WARNING: SNMP Get Timeout for Host:'10.x.x.2', and OID:'.1.3.6.1.2.1.2.2.1.10.15'
10/08/2014 11:00:02 AM - CMDPHP: Poller[0] Host[4] DS[52] WARNING: Result from SNMP not valid. Partial Result: U
10/08/2014 11:00:02 AM - CMDPHP: Poller[0] Host[4] DS[52] SNMP: v1: 10.x.x.2, dsname: traffic_in, oid: .1.3.6.1.2.1.2.2.1.10.15, output: U
10/08/2014 11:00:02 AM - CMDPHP: Poller[0] WARNING: SNMP Get Timeout for Host:'10.x.x.2', and OID:'.1.3.6.1.2.1.2.2.1.16.22'
10/08/2014 11:00:02 AM - CMDPHP: Poller[0] Host[4] DS[59] WARNING: Result from SNMP not valid. Partial Result: U

any ideas?

[BSOD2600]

Was that snmpget FROM the cacti server?
Is there a firewall rule which is blocking the SNMP traffic from cacti to the switch?
Tried switching between snmp v1 and v2 for that device in cacti?

[nccuss17]

The snmpget is on the same computer as the one running cacti, and both are against the same switch.

I've tried both snmp v1 and v2 in cacti.