I uninstalled GC2 and GC2 DA then reinstalled each in order one at a time from Impulse.  After that, Tota would finally start.

This is under Windows 7 RTM x64.

Hope it helps.

Prof.

I've tried uninstalling impulse and DA / TotA and reinstalling them.  Still no luck.

When I try to launch either game, the screen goes black as normal when the game starts.  Then, after a few seconds, it returns to the desktop with the crash notification.  I've tried compatibility settings as well as looking for the error file - no luck.  Any suggestions?

That solved it - Thanks a lot!