New 3tb Seagate drive external USB enclosure MAC OS X 10.6.8...

I just purchased a new 3tb Seagate drive to replace a 2tb drive in an external USB enclosure, I can access, partition and format it using Parallels but can't even see it in Disk Utilities on Mac OS X 10.6.8...????!!!!!
Any Help?
I beleive it has a Jmicron chip in the USB to ATA BRIDGE....

More info: the USB to ATA/ATAPI bridge can be seen in system profiler....
The drive works, no problem through parallels... ***?
USB to ATA/ATAPI bridge:
Product ID:          0x2338
Vendor ID:          0x152d (JMicron Technology Corp.)
Version:           1.00
Serial Number:          000000000000
Speed:          Up to 480 Mb/sec
Manufacturer:          JMicron
Location ID:          0xfd143000 / 7
Current Available (mA):          500
Current Required (mA):          2

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