I see the same thing on one of my systems. A mask would be a great addition.
yes, it happens for most of the PC games on my cab, fixing it would be great!
Well...the mask doesn't seem to work (I have tried it before actually, just had some new-found confidence!). Basically Windows seems to decide what it shows, and where and when, regardless how I go about it.
But I have I solution...kindof - atm it means having a plain black desktop with no icons. For me this isn't a problem on my cab as I have it like this anyway...