ok ok, I've worked on Amigas for quite a while now but have never seen a hack like this. The A4000T I got was having intermitant floppy probs, so I opened and lo and behold, the floppy cable was hacked all over.
The second to last pins of the cable on either side were crossed over each other and going into each others port on the connector
help?!?!?!?!