This is incredibly odd.
I have 2 hard drives, a 20 gig and a 180 gig.
The 20 gig has 2 partitions, a 729 MiB swap partition and a 17.93 GiB partition. The problem is that according to GParted there is 15.04 GiB used and 2.90 GiB free. Every other program on the computer however only sees 2.0 gig free. While .9 gig isn't much my 180 gig drive has the same problem.
GParted reports 149.05 gig total, 112.00 GiB used and 37.05 GiB unused, while everything else only sees 29.6 GiB of unused space, almost 9 GiB of missing space.
I can't think of anything that could be causing this, any help would be much appreciated.