For the past 1 year, I am able to connect to my Windows "server", which is a Windows box running WinXP. All I need to do just go to Finder -> Connect and type this: smb://MYWINDOWSBOX/c$ However, as of yesterday, suddenly it couldn't My MBP can ping, VNC and heck even do Windows RDP to ANY of my Windows boxes. It just does not want to connect via Finder file sharing (SMB). I am trying to trace back what I did this past week that may cause this problem, but I couldn't think of any. All I did these past 1 week are: 1) Install DropBox client app 2) Install new certificate in Keychain access (iPhone development) 3) Uninstall StuffIt FYI, the error I am getting is: The Finder cannot complete the operation because some data in "smb://MYCOMPUTERNAME/c$" could not be read or written. [Error code -36] However, if I go to Terminal and type the following: smbclient \\\\MYCOMPUTER\\C$, it DOES WORKS!! I can browse the share, change directory, etc. It seems something is broken between Finder and SMB. Can anyone offer any advise? Any configuration file to change?