Baobab on FC6T2

[William John Murray]

   Hi guys,
                I seem to get strange results from Baobob on FC6T2.
I have two physical disks, 40+80Gb,  with 3 major partitions
df says:
 /dev/sda1             19934460  17258560   1646940  92% /
/dev/hda1               101086     31178     64689  33% /boot
tmpfs                   256672         0    256672   0% /dev/shm
/dev/sda5             56182236  43533372   9794920  82% /scratch
/dev/hda2             38362000  32781468   3631848  91% /sl3

Which I basically trust.

Baobob says:
  Total filesystem capacity 109.3Gb  (used 89.3 GB available 20.0GB)
Which agrees.
But the directory tree does not:
/             99.3GB 100%
/scratch 43.8GB 44.1%
/sl3        36.1GB 36.4%
/home    11.7GB 11.8%
/usr         7.1GB  7.1%
/var        183MB  0.2%
all the rest are smaller.

The totals seem vaguely correct, but not in detail. Are the percentages
seem to be percentages of the total space used, not the space available
on the disk, which is not what is meant, surely?
   Also, looking at the graphical display I could not see any free space 
there
either.
        Thanks,
             Bill