PT only works on one USB port on new 15" Macbook Pro

[Philly]

Was having a major PT issue and figured out the problem after troubleshooting.
PT hangs on startup when i use the USB slot closest to the macbooks screen but runs perfect when i use the one beside it. Every other USB device runs fine on either USB port. Anyone have this problem or know a explanation? Very strange as PT is the only thing i installed on a fresh machine

Tech Specs:
OSX 10.6.3
2.66 GHZ Intel Core i7
4gb 1067 Mhz DDR
Running Pro Tools 8.0.3sc2


Thanks!

[Philly]

bump

[DigiTechSupt]

It appears the new MacBook/MacBook Pros share some services, like bluetooth, with certain USB port controllers. Using a shared port causes problems - that seems to be the case as far as we can tell at this point.

We've seen this in the past with previous generation MacBook Pros, MacBooks and Powerbooks - the bus design for USB ports can vary from generation to generation. Since audio is high bandwidth and needs low-latency communication (meaning no interrupts in the USB data stream), the shared ports most likely have data or other interrupts happening, causing problems with your audio interface.

[clavdig]

Just had that problem tonight. Works fine in USB furthest from screen.

[bigdrum2]

Same for me, my new MBP USB closer to the screen make my Mbox hang, and the
other USB work perfectly.

[ed13adema]

I got a new 17" i7 last week and couldn't get it to work on any USB ports. I had to go and get a MBox Pro.
I have to say once I got every thing going. Pro Tools runs flawless. I also have a HD system and I can now run a fully mixed HD session on this new 2.66 i7 laptop with LE. With no Buffer issues. I also have it powering a 24" apple monitor.
I feel for the first time you can do some real work on a laptop