I was going to reinstall windows xp on a machine but for some reason the cdrom will not show up when the computer boots. So I can not boot to the cdrom with Winxp on it. I tried another cdrom. I tried a different cable. I even tried a different ide channel. All the jumpers are correct. It shows up in the bios but not at boot. This computer belongs to a friend and it did have a trojan virus on it. Could it have messed something up? Thanks!!!