Vista - ATI RC1 Driver Problems

Got a good one for you here. I'm having massive problems getting my ATI X800
to work properly with RC1. Installed Vista (x32) today (clean install,
seperate partition), all went smoothly, then installed the latest ATI drivers
(the RC1 versions). First thing I tried was hibernate and sleep mode, as this
has never worked for me in all the Vista builds I've tried. Usually it BSODs
on resume. Whaddya know... it works perfectly now!

Great I thinks, except there's an even bigger problem now. If I open up a
picture file - well, specfically a photo, might be all JPGs - as soon as I
close it I get BSOD then reboot. Strange thing is, it's a blank BSOD... no
stop code or nothing. Never, ever had this in any other build so I started
racking my brains as to what had changed, apart from Vista itself. The ATI
drivers sprang to mind so I uninstalled the RC1s and installed the Beta2
version instead. Picture problem has gone away, but I'm back to BSODs when I
resume from power saving mode... so it's got to be the ATI drivers... right?

Any ideas anyone?! I seem to be the only person in the world experiencing
this right now as far as I can tell I don't mind which driver set I end up
using as long as I can get rid of the BSODs AND use some sort of power saving
mode (need it for my shceduled recordings).

Relevant hardware:

ASRock 939 Dual
A64 3700+
ATI x800Pro
2Gb RAM
Haupaugge HR1300
Seagate 160Gb drive on Sata2
Samsung 710N TFT

Running Vista (x32) RC1.

TIA