I have 2 PC's, which have the same symptoms. 1 is an Acer Aspire 266mhz and a Packard Bell, old. Both stopped displaying the desktop and and both have an onboard graphics card. Is there a way to fix this? I have read about updating bios and info from the device viewer, but I am unable to see what I am doing. I verified that the monitor is ok, it's just the PC's. Can any one advise me on these?