perhaps I am not understanding the problem - I have a wide screen monitor and the recommended resolution is 1680 x1050, will that not do for you?
I recall that when I changed to Windows 7 64 bit I could not see anything but a black screen even though the game audibly loaded. Turned out I had to change the resolutions in the config text ( forget the details) and then it all came good. That is not what you are talking about though, I suspect..
apologies if I am missing the point