After flawlessly running a setup EXE written in FoxPro, a users computer gives the following error when trying to run the just installed program EXE:

PPSQL.EXE No Disk (title bar)
There is no disk in the drive. Please insert a disk in \DEVICE\HardDisk1\DR1

Has anyone ever seen a message like this? What would cause it, or more importantly what would fix or prevent it?

TIA