http://bugs.winehq.org/show_bug.cgi?id=10947
--- Comment #3 from Austin English austinenglish@gmail.com 2007-12-29 14:13:26 --- err:ntlm:SECUR32_initNTLMSP ntlm_auth was not found or is outdated. Make sure that ntlm_auth >= 3.0.25 is in your path. err:ntlm:SECUR32_initNTLMSP Usually, you can find it in the winbind package of your distribution.
See if installing winbind helps.