Weird Setup Program Problem

[DKing86]

Here is a good problem for y'all. For some reason when I try to install my program on one computer at work that has Windows NT installed on it, I only get the initial form displayed for a few seconds. The initial form I am referring to is the gray one the says "Copying Files, please stand by. My program was installed on this computer before, but since I had updated it I wanted to install the new verison. It installed just fine the first time and now it doesn't install at all.
Again, my problem is that I double-click on the setup.exe file, the gray form appears "Copying Files, please stand by.", then dissapears after only a few seconds, and then NOTHING. What is up?

For all those concerned, I was able to install it just fine using InnoSetup. Believe it or not, I really want to use the Package and Deployment Wizard though.

Thanks in advance.

Do any error/warning messages come up?

[DKing86]

No unfortunately, no error messages appear. Everything appears normal before and after I execute the Setup.exe file in the system. It's just that the gray form appears and then disappears.
One other bit of information for you. When I go to install an older (different) project of mine on the same system that was dated around Jan 2000 it loaded just fine. So, then I tried to load my original program that was dated around Jan 2000 and now I can't even load the original program. Something seems to be tied to this program only and this happens regardless of the version.