New install - empty graphs, no legends, or stats

[goat]

Hello,
We've put up numerous cacti installs over the years. It is an invaluable tool for us. Here's what I've got going with the latest install. The graphs are blank. Not the typical, often reported "no graphing". I'm talking about no graphing, no legends, nothing. I'll insert an example below.

Fresh install of CentOS5. Then yum updated to 5.2.
Cacti 0.8.7b - Spine 0.8.7a
Tried both RPM install via yum, and clean install from tar.gz. Same results.
I am using spine with it. Tried both RPM/yum install and from source.

At first I thought the problem was tied to the fact that this is our first attempt at implementing the plugin architecture. However, when the problems arose I removed everything and am seeing the same issues with a clean (no plugin arch) install.

The example image is attached. I'm stumped. Any ideas will be greatly appreciated.
[/img]

[gandalf]

If rrdtool = 1.2.28, please downgrade to 1.2.27 or install required fonts
Reinhard

[goat]

Thanks Gandalf. I just started seeing the other posts today about this. Will give it a try!

[goat]

Just a followup - manually downgraded to rrdtool 1.2.27 and all is well. Thanks again for your help Gandalf.