Just upgraded to Omega 2.6.87 (based on 5.12 ATi)
No bloatware these are basic ATi reference beta about 22megs
d-loaded driver package to new folder unzipped them to same.
Control Panel -> add/remove programs -> removed old Omega
Reboot/restart (note got 800x600 resolution, 32bit color on return)
Ignore/Cancel New Hardware and all requests for disks
Disable Norton AV
Go to Driver Cleaner (I have this pre-installed as a separate program)
Set DC to ATi
Cleaned twice (sorry I am obsessive complusive)
Go to executable (Omega 2.6.87 that I had decompressed)
Run (note added Multi Res but did not add to Start nor shortcuts)
Ran driver setup when requested
Ignore warnings of not WHQL (happened twice for me)
When asked to reboot/restart hit No
Enabled AV
Reboot via standard Windows XP method not via request
Reset resolution
Ran defrag (Diskeeper for me)
Ran 1st benchmark (old AquaMark) gained ~900 points or about 9 fps
Will advise other Kaleun of results with SH3 when I play again, confident of success....
This is the short hand version of what I do for drivers - if you read my initial post I have a link for removal tool of ATi reference drivers, have not needed such but maybe useful to others.
So far Omega operational.
g/l