nUI MB usage problem.

[Kagi]

I've been having problems ever since I installed nUI 5.02.02 with sudden and drastic drops in my FPS and then a complete screen freeze. I can hear WoW still running but it seems my FPS stays at 0.
I've read the forums and newsletter. I did a "clean" install of nUI 5.02.04, replacing the Interface and WTF folders. I also limited WoW's FPS to 30 and nUI's FPS to 25. I'm still having the same problem. Last night I noticed that nUI's MB readings show that it is slowly increasing it's MB usage by about 0.02 MB every few secs or so and doesn't seem to level out. Before WoW's 3.1 patch nUi used about 6-11MB. I logged out of WoW last night as nUi was using 30.0+ MB and still climbing and my laptop was heating up as if under heavy strain. I certainly wasn't in a setting that should be taxing my laptop.
I've run nUI previous to Blizzard's 3.1 patch with no problems. I also ran WoW 3.1 for a week before I installed nUI 5.02.02. The day I installed it I started to have the problem. Somewhere between a half an hour to two hours the FPS drops to 0 in just a few seconds and stays there. I suspect nUi is doing something in the background that is causing my laptop to heat up, perhaps a conflict of somekind I'm not sure. Please help nUI is an absolutely fantastic addon.

System specs:
MacBook Pro3,1
OSX 10.5.6
2.2 GHz intel core 2 Duo
2 GB RAM
GeForce 8600M GT

Note: I am also running the latest versions of "Carbonite Quest", and "Auctioneer" Addons, but that is it.