My wifes computer is broke,and she needs to use it for work. When it boots up,I get an invalid system disk error.(There is no floppy in the drive)I noticed in the bios that it was listing her hard drive as 4bg, I recently upgraded it to a 10gb. I cheated and copied the old drive to the new with Maxtor Max Blast. I thought that's weird,so I changed the drive to Auto in the bios and had the bios Auto detect it. It comes up as 10gb's. So I save the changes and reboot. Invalid system disk error still, and it reports it as 4gb. It's not accepting my changes. Could it be the cmos battery? I tried fdisk/mbr,no good. I can get with a floppy and see the contents of the drive. I'm thinking it's just because it's seeing it as 4gb. What now?