THOLD Thresholds not receiving data from data source

[mcdonaldsmcchicken]

Hey guys. I'm new to these forums, but I have an odd problem that I can't quite figure out. I can create my threshold fine, and when I'm on the threshold edit page, my graph shows up and it even shows the current value of the source in the little top bar, but when I go to the THOLD tab and view the threshold, it doesn't report any value for 'current' and doesn't alert. Thanks in advance for any help! I'm running the latest release version of cacti and the plugins on a Ubuntu 12.04 server.There is also nothing in the THOLD log or the cacti log. This is a universal problem for any type of data, I'm just using the current users on the localhost as an example.
Here are some snaps:

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[mcdonaldsmcchicken]

Other plugins work fine though. It's just threshold that's giving me trouble.