I've been using the Box Office with no issue connecting to a folder in my C: drive for quite some time, but the drive is becoming full and I now want it to see a folder on my other hard drive as well. I've enabled sharing as per the instructions here, but it is bringing up the login box with 'guest' in the user name. I've tried leaving it blank but it won't login. I can still connect to the original folder fine.

What am I doing wrong?