Thomas, again I am very thankful for your replies. Like save2600 said, your answers really save me lots of time. But most of all, I'm learning a lot from them. Hope I can return the favor to other people some day.
edit: wanted to add one thing, its only the free space count that seems to be incorrect. The '% full' and 'in use' indication of the partition seem to work alright. I tried filling it up with some big files, and after some copies it says:
21% full, 4MB free, 2160MB in use when I copied over another 80MB it says:
22% full, 96MB free, 2240MB in use I will continue to fill up 2 partitions after the first 4GB and in case my HD0 gets destroyed will report back here

edit 2: no wait, its only the percentage indicator that works.