Hey there. So, I've just finished Thief 2 (great game, except for the Lost City mission) and decided to install the famous mod. I had to change the shortcut route to match the core game's new executable (Thief2_ND.exe) and the mod runs fine, but every time I open the menu/objectives/map screen, the game switches resolutions, and when I return to the game, it switches again. Is there any way to solve this? It's really annoying...

Thanks for the help voodoo47, here's what I did:
1) Clean install of Thief 2.
2) Opened Thief 2's shortcut properties, then added -fm to the Destination.
3) Execute Thief 2, letting the the fan mission selector create its directories.
4) Moved the 't2x' folder to the FMs folder.
5) Started the mod from the fm selector.

... and done, no more changing resolutions!