when i put the cord on the right way, it does nothing, it won't light up even when i put a disk in the drive, when i put the cord on backwards it stays lit, so i know power is getting to the drive, but when i click on the drive in my computer it says that there is no disk. i have tried 2 drives in 2 computers that i set up. what is wrong? if anything works it should be the floppy right? everything else works. i have tried many disks.