Although I have seen this on Solaris 9 running Samba 3.0.10, we have recently upgraded to Solaris 10 running Samba 3.0.23a. prstat/top shows a single smbd process out of control and this message is flooding the log. [2006/08/14 10:14:54, 0] libsmb/nmblib.c:(1019) select returned -1, errno = Invalid argument (22) [2006/08/14 10:14:54, 0] libsmb/nmblib.c:(1019) select returned -1, errno = Invalid argument (22) [2006/08/14 10:14:54, 0] libsmb/nmblib.c:(1019) select returned -1, errno = Invalid argument (22) [2006/08/14 10:14:54, 0] libsmb/nmblib.c:(1019) select returned -1, errno = Invalid argument (22) [2006/08/14 10:14:54, 0] libsmb/nmblib.c:(1019) select returned -1, errno = Invalid argument (22) [2006/08/14 10:14:54, 0] libsmb/nmblib.c:(1019) select returned -1, errno = Invalid argument (22) Samba is supporting users coming from a Terminal Server 2000 environment and therefore causes a DOS for users sharing that Terminal Server connection to Samba. Any help or advice would be appreciated. Cheers, Aaron Browne