I just got my M58E in and I'm trying to do an up grade on the OS using the disks that came with the computer. I started out with Disk 1 and all was going good, It asked for the second disk, put that in and it was working fine. Now it asks me for supplementary disk 1. I have tried both of the disks I was given and neither of them works. Am I missing a disk, or am I missing something else.