blue display

You may have a virus infecting your computer.
Try to scan your HD to check whether this is a real virus or a false alarm.
Your hardware maybe causing such error message appearing.

Barring a virus (as your pervious response would indicate), you either have a bad or corrupted system file (ie VxD, SYS, PDR, MPD) , a hardware device failure, or a program that conflict with a system file.

Did this problem start occuring afterinstalling a program? Try uninstalling the program to see if that clears the problem.

Your "Blue Screen of Death" should report an "exception occured in file ???????.???". This should give you an idea as the device that is causing the problem.If the system file has been corrupted, you can reinstall that file. To do this in Win98, run System File Checker by Start|Run > SFC. (For other Operating systems please email.)

Sometimes it can be the RAM causing these blue screens. We had a glut of these at work after buying some cheap and nasty chips.
Try swapping for some known good RAM and see if this helps. I assume you know your CPU fan is running ok?. An overheating CPU can sometimes have this effect as well.