Client's computer boots normally. But whenever you attempt to run a program, or sometimes when no program is running, the following message appears:
Windows - No disk
X There is no disk in the drive. Please insert a disk into drive.
CANCEL TRY AGAIN CONTINUE
Whatever button you click on, the message reappears. While it is displayed, no program will run. I got about 25% through a Spybot scan by continuously clicking on "CONTINUE" about 100 times!!
What disk? What drive? What is going on?