I downloaded Windows Vista Ultimate to try it. I installed it without a serial number just to try. It's under the 30 day trial, not cracked. My problem is that it won't install anything from a CD i insert the cd and run setup and nothing happens everything else seems to be working fine. I noticed that some tasks in task manager are duplicated many times, does that have anything to do with this???

Thanks

What programs? Please be more specific, give examples. Are the cd's being read? Have you tried to install the programs in XP compatibility mode?

I've tried Office 2007 and Delphi 6, the computer is a Dell Optiplex GX620, everything works fine on a 745 could there be something with Vista the GX620?
it reads the cd's but it won't setup thats for cds with autorun. put a data cd/dvd it reads it but it won't open if i go to my computer and double click it i have to right click and hit open and i can setup any program from that kind of cd\dvd.

i think the problem is with the dvd device the device is Philips DVD8801 HH 16x DVD+/-RW. I put a another device a samsung and everything worked fine. how do i fix this? is there some kind of driver, i downloaded the driver from dell's site but nothing new??????

Ummm.... maybe try and clean the lens?