Having a problem installing Simcity 4!!!

Hello there, here is my problem-

I get the CDs and put it into my computer. I start the installation and the installation freezes at these percentages after every attempt to install- 0.03 (the worst), 0.48, 0.78, and 2.78 (the highest I can get). What is going on!? I check everything to see if there is something wrong. Can someone tell me what canI do so far? Please answer quickly!!!

Im not sure what the deal is. I actually got mine to work completely at one time, BUT, my anti-virus kept trying to clean it out.
Anywho, if you keep at it , it may eventually load both discs and you can play, but it seems that my computer is reading disc 2 as a virus. Im not sure if anyone figured this out yet, but since I 'uninstalled' it, now i cant seem to get it working again.