I wonder anyone has came across this problem I have facing. Currently running 3.0.20b as member of W2K3 AD, I have a third party educational software that runs from a samba share which is available for all students. Somehow, I find that CPU is running high in % with server slowing down and winbind users not resolving properly to username from GID. I notice that a lot of these messages are generated: getpwnam ANDREW LEGGETT.VARNDEAN.000 It seems to me there is a peace of coding in the applicaton that run as/by user 'Andrew Leggett' and winbind is complaining it doesn't not exist on the domain which obviously is the case. Can anyone has clue how I can disable getpwnam user 'unknown' to the domain?