{DAV} Frosty not launching the game

[linneh]

I've just reinstalled DAV and wanted to get some mods this time, so I followed the DAV modding tutorial to install FMM Alpha5v4, but when i click "Launch" the game won't open at all. This is a clean install for both the game and the manager, I tried launching with or without any mods in and it simply won't start even after checking the compatibility tab for the EXE or deleting the moddata folder, but i don't know if th sdk data prompt showed in the tutorial ever showed up for me.

I launch the game through steam, I also have a second version of frosty for DAI, in case that may be messing with things.
Any help is appreciated!

Edited March 23 by linneh