Yes - s.e.a.r.c.h. Search the forum. Search again. Countless amounts of people use ATI cards, 3d accelaration etc. and can help. Probably you need to install the FGLRX drivers (they work for 8500 and above, I've heard), then hope that they do work and fit in your machine (didn't work for my 9200SE - too bright a screen, no tool was ever found to fix it well), and then stop updating your kernel unless you want to install the drivers every time again and wish they still work.
But search the forum. It's all there..