So Morrowind ran fine (with the exception of all the accepted glitches we've all come to know and love), but in preparation for Skyrim (and some others) I upgraded my graphics card from a GTX 260 OC to a GTX 560 Ti. The only other change made to my system was to update the graphics drivers.

The problem is that now Morrowind plays in full screen and not wide screen. Yes, I know... I'm getting MGE to solve the problem, but I still don't know why it happened. My system's native resolution stayed the same at 1920 x 1068 and nothing changed with my monitor. So, why did it change?

The graphics device driver could have reset something. nVidia does have an option for 1:1 scaling and configurations like that. Also some monitor can control such options too.

Figured it'd be something like that. But with MGE it's more stable and runs at my GPUs native resolution. Good times. Thanks for the reply.