What do you mean force around 1280x1024? are you talking about using the CT-Viewport to bring the rendered image down from the top of the screen??? Its not that big of a deal to me...I increase the distance of the camera a bit and I see all that I want to see...Im a dwarf toon anyways, so I dont get to see too much vert...HA
Not quite.
I have 2 1680x1050 monitors spanned using the nVidia drivers. I use ct_viewport to bring the rendered image to 1280x1024 and center it in my right screen (had to edit the .lua files in ct_viewport to do this). I use all the black space on the left screen for my map and some of my button bars and the black space down the left and right side of my right screen for the rest of my interface to get it out of the way. It was either this or deal with an fov that was making me motion sick and giving me a headache at 1680x1050 (only 1 screen, but the vert- still made a difference).
The only reason I use 1024 on the y axis is because I use fubar and the top and bottom bars fit well in 13 pixels of space each.
The point is that I have the aspect ratio at 5:4 (or close enough) and I don't get sick anymore. Amazingly, this is the only game I've ever played where a reduced fov made me queasy. All the other times it has just been an annoyance.
Edit:
I also wanted to point out that I've tested using the camera zoom to make up for the reduced vertical image. It only restores about 20%, and that is with it all the way out in a 16:10 aspect ratio.