Believe you me, I just got partition manager to try to do it with PC, and STILL no dice. I format and partition with the 770, plug it into the reader for my PC and it only sees one big fat16 partition. The weird thing is that I could view sectors and it says something about not being able to boot a certain sector...yet my 64MB card that I parted and formatted doesn't say that.

EDIT!

It works, I used partition manager for windows. Works fine, wouldn't work though while trying to do it from within the 770.