Easy Disk Drive Reset

When your drive gets temporarily confused, you can reset it without touching the keyboard or risking the loss of your program. Just reach behind the drive and turn its power switch off. Wait a few seconds, then turn it on again. Your drive will be reset, and your program will be perfectly safe, because the computer itself isn't affected.

If you have Jiffy Dos installed just type @I0: and then press return from basic mode and then return to your program.