I updated the screen mode selector to work in vista/Windows 7 + latest DirectX. Grab it from here if you need it:
Vista version

The older winxp version is here:
XP Version

Much appreciated. I wonder how Tread Marks will run in 1366x768! ROFL (probably will HATE it)

It runs quite well. Thats the resolution I use. :)

I'm personally using 1680x973 and it works fine :)

TM is great with nonstandard resolutions.

Now, why is that? I mean, I'm getting 10-15 more frames/second at 1366x768 than I did at 1024x768. This makes no sense, since the game has to shove more data to the video system. But hey, it's cool all the same.

Does that work the same for filming? I will have to try it.

Its probably because with an LCD screen, the optimum resolution is the LCD's native resolution. Running a screen mode different than the LCD native resolution may cause the hardware to scale the image up or down, putting an additional load on the graphics card. the reason I say "may" is because the LCD screen can show other resolutions, but the ones it can't will need to scale it up to nearest one.