As an ATi fanboy I was overjoyed to find that ATi had finally posted new drivers (I refused to run drivers if they weren't posted on ATi's site, just out of principle)
Sadly, while these DID improve performance (150 points in 3dmark 2001, put my XP system back up to where it was when running 2000) it comes with its own share of problems.
A) My TV Wonder finally got the "garbled on load" bug. I now have to make sure to click on my desktop or "unfocus" the TV Wonder window between when it starts displaying the splash screen and when the TV itself loads, otherwise it's screwed up. People've been having this problem for a long while, but I hadn't run into it with the 3286 drivers.
B) My dual monitors are going all wonky on me. I used to, for the first five minutes after starting, get graphical glitches on my second monitor whenever I move my mouse back to the primary. These fixed themselves after five or so minutes.
Now, no matter where my mouse is, the corner of my secondary monitor will bring up glitches that correspond to the movement of my mouse. Even when I've yet to touch the secondary monitor. This is TOTALLY unacceptable to me.. especially with the marginal performance gain.
I'm going back to the 3286 drivers.