Well, I downloaded the latest Catalyst drivers from the ATI site. Unfortunately I have no way (that I know of) of being sure which type of card it is beyond being a 9600 (which I'm fairly sure of - I'm also reasonably sure that it's the 128 MB version).
No effect. I got into a game once for about 8 mins, and it was awesome. Even racked up a positive kill ratio (ion weapons - gotta love 'em). Then the round ended, and I found myself staring at the loading screen again.
An interesting note: it gets through caching the textures without too much delay, but it takes forever for the program to cache the objects. I got up, made some lunch, and came back. It was 60% done loading the objects. So I eat lunch, and it finally finishes.
By this time the server is not responding when I get ingame. The new drivers had no effect on the load time.
Shadows and foliage are some of the first things that I turned off, and I've also set the terrain detail to the minimum and unchecked anything dealing with textures that I could find (including High-Def textures).
The next thing I'll do is turn off texture caching... though if it still has to cache objects then I'm still sunk.