Hi Kirk,
thanks for getting back to me - have now updated to 4.4.3.1
It appears that I was having permission problems with one of the partitions on the drive in question. I suspect that this was causing the whole drive (all 4 partitions) not to be visible in PM Navigator.
While evaluting PM I was looking into the possibility of using one of the partions as a "drop box" (found under "Get info" "Ownership & Permissions > access") as the secondary destination when ingesting.
Whilst I didn't change the permissions of that partition I must have checked the "ignore ownership on this volume" which actualy causes some files to become hidden - not globaly accessable as one would initialy think (I plug this drive into different machines and wrongly guessed it may be the correct option for this practice)
The following thread alerted me to my error and also provided the fix.
http://discussions.apple.com/thread.jspa?messageID=2524416�As a result I can now see my external drives in the Navigator window.
I'd still like to pursue the "drop box" idea (on a dedicated FW drive this time) has any one else tried it?
Michael.