Can't install CD X4 from installation disc on Vista machine

Help!

Just received my CD X4 suite package.  Installation disc loads the Install, Extras, Tutorial, etc option screen but when I click on the first option (Intstall the Suite), the disc just spends in the drive bay for about 25 minutes and nothing happens, no progress bar or anything.  I have to reboot the machine. If I choose the Extras or Tutorial options instead, the tutorials come up normally and the Extras install displays the progress bar until about halfway, then announces I have to install the Suite, first. 

I've previously had CD 8 and a trial version of CD X3 but I've already uninstalled them (or so it appears).

Windows Vista Home Premium, Intel(R) Core(TM)2 CPU, 6300 @ 1.87 GHz, 1014 MB RAM, 32-bit operating system.

Thanks for your assistance!

-Sam