Please help ASAP

[Kenneth lléphaane Christiansen <kenneth ripen dk>]

What is wrong when you get the error message

mv: can't stat destination somefile.h

This has happened since I installed lorax (rh6.0.55), and I haven't been able to
compile anything since.

Btw, how can your bootsector just dissapear. I rebooted by pc from linux, and when it came
to load the bootsector is said "no system found, please insert another disk" I easily fixed it again
not kind of things chock me