Hi Chris,
Thanks for the reply. It seems rather apparent to me that it is the driver I am using for several reasons. The machine I'm running AE CS4 on has a brand new motherboard, RAM, the works. Freshly formatted XP SP3. The only thing that is not new is my graphics card, which works great for every other application I own and use, including 3dsMax which alot of my scenes have upwards of 1,000,000 polygons showing with steady framerates. A faulty card would punk out on something of that magnitude.
However, AE runs FLAWLESSLY on my server rig, which is HALF speed (core duo, only 2 gig ram, GEF 7800).
So in my mind it clicks that it has to be either the Nvidia drivers I am using or my quad core (had there been any trouble with quad before?).
Unfortunately I won't send you my graphics card haha. That's an awkward request from a support team, but, thanks for the offer.
Hopefully the additional info I provided helps you guys see whats up. I haven't tried the driver downgrade yet, but I will if you need me to test them to see what is causing this issue. Thanks again,
--Matt