not sure what your voodoo is there but here's more info:
I tried again with original data, default ruleset, and only my Config & the .Sav in documents. ( i doubt my config has anything terribly unusual, 1680x1050x8 windowed & pinned @ 0,0, no OpenGL, no filters ) The .log says everything loads fine, then 10 seconds later when it enters Tactical:
[19-07-2013 02:03:05] [FATAL] Where's the memory, Lebowski?
The fault occurs between the "Exercise Caution" screen and soldier loadouts..... (the OK button sticks in the down position but music keeps playing.)