Just wanted to blog about the final step when connecting Vista to Samba servers, after switching off all the "requiresign..." and "signsecure..." values in the registry:

- Click start
- Type: regedit
- Press enter
- In the left, expand these folders:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\

- In the left, click on the folder named:

Lsa

- In the right, double-click "LmCompatibilityLevel"
- Type the number 1 and press enter
- Restart your computer