While reading another hint on this site, I came across the macwindows.com site and the article "Fix for Mac OS X SMB printing woes after security update". In summary, the latest security update broke samba authentication to NT servers. In turn, this broke SMB printing using Gimp-Print. I have a printer configured in this manner and was not even aware it was broken until I read this article.
One of the proposed solutions was to reinstall older samba binaries that were replaced during the security update. Since I generally have a problem re-installing outdated binaries, I decided to go the other direction. Using Fink, I installed a newer version of samba and replaced the binaries in /usr/bin with those from /sw/bin. This fixed my problem and now I can print using SMB and Gimp-Print again.
If you read the articles on macwindows.com, they indicate you should replace smbspool, smbclient and another article suggests rpcclient. Personally, I found that my printer problems were resolved by just replacing smbspool. Having said that, I decided to update all smb* binaries and rpcclient just so I have the latest versions.
Here are the steps I performed:
% cd /usr/bin % mkdir /samba.0324 % ditto smb* samba.0324 % ditto rpcclient samba.0324 % ditto /sw/bin/smb* . % ditto /sw/bin/rpcclient .
Mac OS X Hints
http://hints.macworld.com/article.php?story=20030404085408922