Rambo & gidoca, you made my day!!! Thanks a lot :-D

@ gidoca:
First I tried it with WinXP (x86) than I tried it finally with Ubuntu 9.10 (x86) and it worked pretty well with sudo

@ rambo:I used it on Ubuntu 9.10 (x86) and after a reboot it worked fine. It was a bit difficult because I had to run it with holding "u" and afterards I had to close the terminal and open a new one to do the same again and then it worked