Sounds like your video drivers have become corrupt.
Boot to safe mode -> in device manager remove all display adaptors. Re-Boot system and allow windows to re-install the drivers.
I have been encountering frequent random hang-up with my PC. Sometimes after I reboot, it came up with the following warning and would open in Safe mode.
XX There is a problem with your display settings. The adapter type is incorrect or the current settings do not work with your hardware.
Is this could be the source of my current predicament?
What went wrong? How could this be solved?
My PC is a PIII 533Mhz with 256MB ram running on Windows 98SE. Is this information sufficient?