Murphys

So I finally get Chaos Gate working from Brok's post (thanks brok) but I got the the 7th mission and I encountered a new problem. Now when I go to enter any battle my screen goes black and it freezes my computer. I tried reinstalling the game, no dice. I tried to mess with the compatiblity options again but that didn't work either. Im running the game on win XP home and I was just wondering if anyone can help me? Thanks