September 29, 2009 10:01 AM updated: September 29, 2009 10:04 AM

I have a similar problem, except for me the drive does come back, it's just goes "blank". Restarting the MBP is the only thing that I can do to get it back, but will try just logging off in a moment.

EDIT: Turns out logging off is sufficient to get it back.

To be sure:
OS 10.6.1
Pogoplug 1.0.0.34
HFS+ (Drobo)