Noise when protools opens any session

[mgsr70]

I've noticed that when I open pt 10 or 11, there's this wierd buzzing noise, kinda like being in a tunnel sound. I show up in the meters in my tracks..When I turn the monitor knob on my mbox pro 2, it eems to go away but the playback is so low, it's almost inaudiable (sp?). I serious
ly doubt it's a hardware issue since I have not changed my hardware setup since getting this PT 10/11 bundle. That's the only thing that I've changed in my setup. Protools

[Craig F]

could be a driver problem
your MBP2 may be dieing

you didn't give us much to go on

[mgsr70]

Because that's basically it...Noise when I open up sessions..I don't hear it when I payed bounced tracks just when opening sessions!! Don't know what else to explain...