MBox 3 only works on one Drive partition?

[Ormond]

I have my iMac (Snow Leopard) HD partitioned into three segments. MBox3 (brand new, Rev. B) works fine on the very first partition I installed PT 8.x on. But I cannot get ProTools to recognize the hardware on the other two partitions. PT tells me hardware cannot be found or recognized. The MBox Control Panel says it cannot launch because the hardware cannot be found. I am running Snow Leopard on all three partitions. I have tried 8.0, 8.01, .04, .05 - none of them work on the other two partitions.

UPDATE: Somehow when I went to S. Leopard, after zero formatting both drive I lost my driver connectivity - I re-installed from the package CD and got the connections established but I ran into the reported "cannot hear the headphone or monitors (no sound) problem. I just kept clicking buttons and moving faders until it started working, kinda like what was suggested in some of the posts about this problem.

[nst7]

You shouldn't be partitioning, you are likely to have problems that way and there's no need for it, especially on a Mac.

[Ormond]

I think it is a myth about not needing partitions on a Mac. Even bigger myth is that you do not need a defragmenting program on a Mac. I run Corolis iDefrag and you would not believe how messed up a drive gets over time. OSX does not do the job of keeping things neat and tidy.
And, I always keep my peripheral 7,200rpm drive defraged and optimzed - same with the partition I run PT on. I do have everything running fine now.

[Craig F]

reformatting does even better than defragging

[Ormond]

One a month I 7x Zero Format every drive too.