[ocdscale]

I'm not sure if this is just a brain fart on my part, but I had this problem too.
To get PT to auto-import observed hands, you have to make sure it's pointed to the right folder.
Hands I participate in (at least on my computer) are stored by FTP in C:\Program Files...\FullTiltPoker\HandHistory\Name
Hands I just observe are stored in C:\....\HandHistory
(Not in the specific named folder)

To go into "mining" mode, you have to change the folder PT imports hands from.