ATI Radeon Xpress 200 problems in Vista RC1

I have a Hp A1210n Amd Athlon 64 3500+ Media Center computer and it has a
Ati Radeon Xpress 200 built into the motherboard.I install Vista Rc1 no
problem but
when I install the vista drivers for the video card and restart the
computer.Then there is a error,it says something about the memory.It is a
blue screen that comes
up for about 10 sec and then the computer trys to restart again.Maybe somebody
has the same problem.I remember when xp first come out they had I think a
trial
or beta for xp and it had driver problems.