Well,
An update. After tweeking with the detail settings, I can now have the cars go by me without the jagged graphics glitch. So far, i still must use one of the drivers to not have it crash to desktop in 08-09 season, but i can deal with it.
I can see why Plainsmen likes this over Gp4, it does have that twitchy feel of a F1 car. The sim is more in depth that GP4, so its learning curve will be stiff. I need alot of practice... Im using Interlagos as my test bed, as its a more flowing course than the others to me.
I still highly recommend this Full Updated Sim. Very well done and supported.
ISI were the originally developers; EA was just the publisher. ISI is why F1C was (and is) so great. That "twitchy F1 feel" is awesome, ain't it?

But I have the original with the Ralph Hummerich updates for '03 - '04. Can't say what this newer "modder" has done to it.
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Flight Simulator X, Ghost Recon Classic, Rainbow Six/Rogue Spear, NASCAR Racing 2003 Season, GPL --- the best of the best! It doesn't get any better, folks.
The greatest developers of all time: Janes (Origin Skunkworks), Spectrum Holobyte, Dynamix, Microprose, Red Storm, Papyrus, Eagle Dynamics, Creative Assembly, ISI,and SimBin--the best of the best!