MBox2 mini and MacBook no go

[Fidelis]

Long time Protools user mainly on TDM plataform. I have my 4th system now, first was an Audiomedia then Protools 3 TDM , then Protools Mix3 and now HD3 Accel. I NEVER had a problem with Protools installers, software or hardware.

Last week, I decided to by an PT Le system so I could edit my sessions when out of town (I'm on a big tour this year) on my MacBook. So I bought a MBox2 mini.

First, installing the software (PT 7.4.2) took me more then 6 hours. The installer didn't install the plugins and gave me an error. "could not write on "/"..." and quit. Tried every sugestion like install only application, and then after reboot just plugins and then just bombfactory, but nothing worked. So I downloaded the installer again thinking it should be corrupted but the same problem persisted. Then I did a repair permissions. Nothing. Then I decided to upgrade my OSX from 10.5.3 to 10.5.4. Nothing changed.

The only way to install it was using Pacifist. It also gave me some errors but I did manage to install everything! WOW Digi, what's going on here? It should be so simple!

But that's just the first part. Now the big problem. Protools doesn't find the hardware. The Mbox just doesn't light up. So I thought it could be broken. But when I plug it in my friend's PowerBook G4 it works! And it also works on a Mac mini I just have here. What a hell? Tried diferent USB cable, changed USB port, and nothing!

Just so you know I have everything right. MacBook last generation, OSX 10.5.4, 2.5 GB RAM. And I tested my USB ports with mouse, pen drive, USB extrenal drive, and both of them are working ok!

Any help apprecciated. Or I'll just have to return it...