707 has hissy fit when connected to Logic

[fizzyfizz]

My 707 goes berserk when I try and use it with Logic. I assume there's some sort of midi loop going on somewhere but I can't work out where from. Any suggestions? (I'm using 5-pin midi, not USB) THANKS

[DaniH]

How do you have it setup?? MIDI out from pc to midi in on 707, and midi out from 707 to midi in on pc??