Yeah, you put the cable on wrong. One end or the other or possibly both are plugged in backwards. Red stripe on the cable goes to pin 1 of the appropriate connectors. And the floppy should be on the end connector where the cut and twist is.
Ed Fair
Any advice I give is my best judgement based on my interpretation of the facts you supply. Help increase my knowledge by providing some feedback, good or bad, on any advice I have given.