I've got a Xenarc 700TS and onboard S3 graphics chipset on a MicroATX board.
When I set the resolution to 800x600@60Hz on the S3, the Xenarc changes to 800x480 and the top and bottom of the desktop disappear (it's stretched off the screen). At 1024x768 and above, the desktop looks okay (but of course it's too small, and RR doesn't take up the entire screen).
I installed a Geforce 2MX in the AGP slot, and the 800x600 resolution works just fine.
Anybody know how to fix this with the S3 so I can just use onboard video?