corrosive23

Okay I had it installed and running fine under W2K....but i bought a new motherboard and had to reinstall W2K....now Simcity 3000 Unlimited wont play...it will install ...the scenario creater will work but the actual game wont ( it wont if i click on the button when the cd auto plays...it wont if i click on it in the start menu, it wont if i start - run.....any help?