A couple of days ago, two things happened; the PC concerned became unstable after running low on swap space, and I installed MS updates (W2K). After rebooting, I get the error message "The credentials supplied conflict with an existing set of credentials" when trying to access my shares on my CentOS fileserver as they appear in My Network Places. Any pointers? I cannot see any existing connections to the fileserver from this machine, so can't see that there is an existing set of credentials in use to conflict with anyway; and I always use the same login/connect as name too. This setup has run rock-solid for months, and I've made no changes to anything at the fileserver, either. I can work around this by mapping network drives to drive letters (and using IP address not server name), but I really don't want to do that as it tends to slow down loading "My Computer' especially if things break. I'm picking that either MS update has broken something (unlikely) or system instability has broken some configuration file somewhere - but what?