I formatted my computer, and then went off to install DOS 6.22. It said I need to reboot so I did. Then all I get is "Non-System disk or disk error", if it has a disk or not. I saw a few posts about it, but all the posts I saw said to boot from a floppy, which I can't do. I don't even get to the command promt... If I could just get to it, it'd be great. Any suggestions?

try reseat the power and data cables on both your m/b and hdd.

There are a few questions that need to be answered. 1. Which operating system did you use to format the hard disk? 2. Do you have a system disk for DOS 6.22? If you formatted the hard disk with Windows 95 or later (meaning a FAT32 partition), DOS 6.22 will not recognize it. Your bootable partition MUST be FAT16 for you to boot to DOS 6.22. Recommendation: If you have the installation diskettes for DOS 6.22, boot your machine from the first floppy. It should prompt you for installation. You will need a boot disk for DOS 6.22. Your hard drive may be formatted, but without system files, you cannot start from it.