I just installed the fglrx 8.42.3, and it's horsepoop. I get much worse performance, and I was wondering how I can downgrage(or upgrade, depending how you look at it) to 8.41.7. Changing back to the old xorg.conf won't work, will it?

I use 32-bit SLED10.1 on amd64 and Radeon Mobility HD 2400.