I'm a little unclear on your size references.
I checked the drive size and the system thinks it's about 60 GB larger than it actually is. (It is a 320 GB drive with 79GB of material)
Do you mean the system thinks it's a 380 GB drive? Or do you mean the system thinks it's got 139 GB of material on it? If the latter, I don't know what to make of your reference later to "199GB instead of 79GB."