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If it will not install on any other computer either than you must have either a dirty disk or a broken one.

Try and clean it with some windex and a clean cloth. If that does not work then you should contact your publisher to get a new one.
 
What version of the game do you have, ie. who is the publisher?

What is the drive letter of your CD-rom drive?
 
Did you follow the uninstall procedure in the Self help thread. It is hotlinked to detailed instructions.

I assume you have tried from both drives, does the exact same thing happen on both?
 
Let us know if that works.
 
Glad you are back in business!