The XP And Win7 Widescreen

Have an weird issue with Win 7 in the sense of Widescreen support.

I have an 22inch screen and run my games at the native rez of 1680 X 1050

Now the thing is older games like Project Snowblind and NFS:Most Wanted for example doesent support Widescreen as such, obviously. But in XP it seems to stretch the image and run fullscreen without any black edges on screen.

Where as in Win 7 it runs like in unstreched with Black Edges cause of the rez.

In XP even though not in Widescreen res , NFS for example I run 1280 X 1024 it runs full screen stretched, but in Win 7 it runs with the same rez and settings. But doesen't stretch image to rez.

Anyone else experience the same problem or know of a solution. I didin't do anything strange in XP, or change any settings or tweak GFX card drivers.

I tried running in XP Compatibility mode with Win 7, still the same.

I have a Nvidia GeForce 9800GTX card.