I've encountered this on several newer machines (233's and 300's with AGP cards) - everything runs smoothly, but when my FPD app exits, the task doesn't exit gracefully. It leaves the desktop painted in one color (color seems to be randomly picked among the brighter ones from the palette of 16 or 256 default colors), no mouse, no desktop. The machine is still working - in case it's a (peer-to-peer) server, the workstations happily run apps off its disks.
It happens only on some machines (even when there are three of them purchased together) and never on some other. We've tried using the SVGA driver, using protected mode for DOS memory for these tasks, no good.
Anyone had a case like this?