So I'm thinking about ordering Alien Crossfire from eBay, but I dont want to get it and find out it wont work on my XP Pro system. Do I have to install the compatibility patch? Because for some reason on my comp if I DO install the winXP compat. patch SMAC WON'T run, but if I DON'T install it it works (almost) perfectly. Does anyone here play SMAC:XFire on XP Pro?