Startup Error

[Andrew Grant]

I just installed Windows 98 SE on an old computer of mine to give it to a family member and when I start the computer up everything goes fine until an error pops up on the screen that says :Disk I/O Error, please replace the disk and hit ENTER" I'm not sure what disk it's takling about or why it's giving me that error. What can I do to fix this problem?

Computer specs: Pentium S Processor 133 mhz, 64 MB Ram, 20 gig hard drive, Windows 98 SE.

[Kablam]

Make sure the jumper settings for the  drive is set for Master,
and it's plugged into the Primary IDE Controller.