You might try going to the Canon website and downloading any software you need including the drivers. Greg -----Original Message----- From: owner-photoforum@xxxxxxxxxxxxxxxxxx [mailto:owner-photoforum@xxxxxxxxxxxxxxxxxx] On Behalf Of Shyrell Melara Sent: Thursday, June 05, 2008 12:14 PM To: List for Photo/Imaging Educators - Professionals - Students Subject: Updated comp. sys. To the group, As some of you know, my computer crashed a few weeks back. Since it's repair, I have had to re-install a lot of my programs. Thus my problem... When I tried to re-install the software for my Canon Rebel XT, it would not install. In reading the "System Requirements" under the heading "Computer" it states, quote: "PC with one of the above OS preinstalled. ***UPGRADED***machines not supported." Question: What do I do now? Without the software, I'm not able to unload my camera to my computer and I do not have a CF slot. Thanks to all in advance. Shyrell