Windows Vista Tips and Tricks
1. Connecting to a LINUX samba server.
Open the Run command and type "secpol.msc" and click OK.
Click on "Local Policies" --> "Security Options"
Navigate to the policy "Network Security: LAN Manager authentication level" and open it.
By default Windows Vista sets the policy to "NTVLM2 responses only". Change this to "LM and NTLM - use NTLMV2 session security if negotiated".