After I updated my samba installation from 2.8 to 3.0

%m shows not the netbiosname of the connecting pc. Now I get the IP adress

Same problem with %u

I have a printer share with guest ok = yes so that everybody in the network
can print... to pdf.
Using 2.8.x .... pstopdf %u /pstemp was filled with the username
now with 3.0 its empty...

Maybe someone can help me a little bit

Best regards
Marcus Stolzenberg