I changed the monitor settings In Red hat linux 8 to 800 x 1024 to try and enlarge the screen and got Out of scan range on monitor. Now I cannot reach the Linux desktop. I do not want to reinstall because I want to keep my dual boot with XP so how can fix this problem without a clean install. I tried system upgrade using disk 1 Reilly red hat linux book. Disk 2 does not seem to boot and is just a follow on installation disk. Can anyone help?