Hi, as im new please dont shoot me if this is the wrong section... I have just put together the following: X2 4200, Gigabyte GA-M55Plus-S3G, 1gb ddr2-800 etc...Im 99% sure hardware is all compatible. When I boot the system With just the windows disk I get message "Disk boot failure insert system disk and reboot", So i put in a boot disk and loaded it, getting message "Disk I/O error. Please replace disk" Boot disk is brand new and ive tried 2 windows disks. So I booted with just the floppy in and it said: "The following file is missing or corrupt: Display.SYS" "There is an error in your config.Sys Line 1" (I'm fairly new to computers so I have no idea what that means) I then took out my old HDD with windows installed on and booted the system. After the Verifying DMI pool etc. screen the computer just restarts, try in safe mode and it just restarts. I would be extremely grateful for any advice on the problem.