authentification problems after updating Linux-PAM

[Remco]

LS,

Yesterday we installed 2 systems with iso 1.5.0. After a 'lunar update' 
Linux-PAM got updated, after which is was impossible to add new users or 
change passwords! We haven't been able to correct that problem. 
Reinstalling a system corrected it, but there should be an easier way :P
'lin Linux-PAM' uncorrected it again :(

This is a rather important issue!

Should I submit this through the buglist as well?

Remco