I have a Win98SE and a WinXP machine. Both are connected to a 1280*1024 LCD panel via a cheap Roline KVM switch. The problem is that occasionaly the Win98 computer reverts to 640*480 or 1024*768 resolution as a failsafe when it can't see the monitor. The XP computer never does that. The problem machine has integrated SiS M650 video (BIOS 1.07.00.6325). I have tried to change the monitor "driver" to VGA 1280*1024 but the problem is still present. Could an upgrade of the switch or video adapter resolve this? What KVM feature I need to look for?

Try what happens if you disable the automatic PNP monitor detection in the advanced dialog of the display properties.

HTH

I have it disabled since the first occurence of the problem.

Could try removing the display drivers in safe mode then not let it redetect after reboot ? (just an idea).

Or try other driver versions, might be a bug.

I'm using a Linksys KVM 2-port switch (KVM2KIT) between my w98se and XP computers with no problem.
...if you plan to buy another one.

Thank you for the replies. The problem is that somebody else is working at the computer and she only notifies me when something is going wrong. Anyway the entire computer will soon be replaced for licensing reasons.

What do you mean by licensing reasons? (I hope you don't think I'm nosy for asking this question.)

Win98 was used without a license on that computer. We found another machine, which happened to have a proof of purchase sticker on its case.

Who the hell is checking if you have a license for w98 these days?
We are dinosaurs. We are subjects for IT archeologists not for M$ copyrights department.

If this were true I guess all of machines here would be running Win98 and I would be purchasing alot of VIA mainbords.