i looked around in knoppix with my normal HDD connected (NTFS, 5 partitions, winXp sp1),
so i found in the menu something like Captive NTFS Driver under Knoppix.... well, why not?
Started it, it also found the right ntfs... dll and sys and so on, i clicked ok, it said "No NTFS Partitions".
What the ... ?!?
Until that point everything seemed to work fine.

thanks for response, alex aka green