hcvv, I’ve used opensuse 11.2 for the past four month, but yes, I’m more used to ubuntu.
anyway , I commented those two lines in the sudoers file and now I’m good:
#Defaults targetpw # ask for the password of the target user i.e. root
#ALL ALL=(ALL) ALL # WARNING! Only use this together with ‘Defaults targetpw’!
is that the right solution?