I know your talking about that. The defualt load up of magos ME is a grey screen, if you have no menu/buttons on the top of that grey screen then i suggest you find a way to contact magos (i tried looking for hes email..failed..sorry)
If its a full grey screen,dx error on load up,missing key/path etc they are often the result of lack of the latest patch or Direct ex, so like said, if your SURE you have he latest direct X and patch as in VERY sure and you still have probs then i cant help you :/