Midi clock running MPC at double speed!!!1

Ok heres my dilema, i'm using the Studio 4 Opcode with my G4 867Dp for midi in Pt 6.0.1.I've edownloaded all drivers from griffin technology for OSX and everythings seems fine. I'm hearing all sounds through my studio test and every things seems fine until i tried triggering my Akai MPC.I had the MPC sequence i'm working on at a tempo of 91.0bpm so there fore i put the transport at a tempo of 91.0 BPM also,only for the MPC to start playing at double the speed of 91.0 bpm,i checked and double checked everything,that i know could possibly be wrong also booted back up in 5.1.3 and triggered the same song and it works jsut fine played att he right tempo so i know its not anything crazy caue it playing jsut fine in PT 5.1.3 only in PT 6.0.1 in OSX does it speed up the sequence, can any one help me with this???is it that the opcode does'nt work well with PT in OSX? or what? does this mean that i realy have to buy a Motu AV USB as i've been told by digi??? anyone using AKAI MPC as slave to PT midi here help help help???

You've got a midi clock loop. Somehow you've got your midi setup configured wrong, and midi clock is being routed to the MPC from two sources. This causes the double speed playback you're talking about.

While trying out a stealth port connection on PT 6.0.1 yesterday I noticed that the MIDI-interface, in this case a MTP II, was happier running at 1 MHz than in Fast Mode. Just an idea...

I usually use midi time code and not midi clock