When I run M.A.D. on my Vista Ultimate x64 machine, I get the nice OGRE screen and choose my settings and click ok. The game begins to take over my screen or create a window (I've tried both DX and OpenGL in full/win mode) than comes to a screaching halt and Windows Vista informs me the game has gone unresponsive and has to close the program. Sometimes I also get a DEP notification about M.A.D. violating DEP but putting M.A.D. in the DEP exception list doesn't seem to help.
A few things I can find when looking for a reason it crashes:
Event Log (Application)
Faulting application MadGame.exe, version 0.1.0.0, time stamp 0x48f4eb2d, faulting module unknown, version 0.0.0.0, time stamp 0x00000000,
exception code 0xc0000005, fault offset 0x1d1d592b, process id 0x77c, application start time 0x01c92f46d693a211.
Attached are two logs from the mad_win directory.
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