are you sure you set all the jumpers on your main board correctly for your new processor? is your win98 not booting up? use your win98 boot disk go to c: and do a fdisk /mbr from the command prompt then try rebooting and see what happens. you should be able to get into windows if you put lilo in the boot sector. another option is to use your boot disk for linux and do a re-install and install linux and lilo agian. I would think that would update all the linux files and allow things to function again.