PC just shuts down when opening up anything that uses nero express. please help!

ok when i open up any application that uses nero express, my computer just shuts down. Has anybody else had this problem?

Im using nero 7 premium with windows xp.

when i open up [U]any application that uses nero express[/U]
Like what? Can you elaborate a bit?

when i open up “make you own dvd movie”, as soon asi click on it, my computer shuts down