Occasionally, Desktop X will crash on me and unload. If I try to reload a theme, it get a warning that pops up and says DesktopX.exe - No disk
device/harddisk2/dx

It give me Try Again/Cancel/Continue, but no matter which button I press, the warning continues to pop up. I end up having to turn my power off. There's no way out of it, it won't let me close it, not even with Alt-F4 or the Task Manager, nor can I shut down with the task manager.

Any ideas?