This rings a bell, at least with regards to the fuse blowing, not so much with the odd behavior. Make sure you don't have any extra accessories attached to the 12V line. I had a JD with a bunch of extra lights and the fuse also blew on mine after installing the colorDMD (LCD). I also ran the eeproms from Matt (btw, great seller) without issues, albeit a JD not AF.
Got a meter to start checking power supply voltages?