The Home Folder may be mapping incorrectly when logging on to a Windows XP-based computer

Symptom:
When you log on to a user account on a Windows XP- based computer with drives that are mapped to a Home Folder on a network, the Home Folder may be mapped to the base share instead of the complete path.

Example scenario:

• 
  The Home Holder is set to: \\fileServer\share\UserName
• 
  The actual mapping that the user receives is \\fileServer\share

Note: Manually mapping the path completes successfully and all files are accessible, but the scenario may repeat when the user logs in again.

Cause:

This issue may occur if due to one of the following reasons:

• 
  Under Group Policy, in User Configuration -> Administrative Templates -> System -> User Profiles -> Connect home directory to root of the share is set to Enabled.
  
• 
  Network delays cause the workstation to try to map to the home folder before it completes initializing the network connection during logon.

Resolution:

To resolve this issue, do the following:

• Make sure you do not have the policy configured in User Configuration -> Administrative Templates -> System -> User Profiles -> Connect home directory to root of the share

• Set the Group Policy setting under Computer Configuration -> Administrative Templates -> System -> Logon -> Always wait for the network at computer startup and logon to Enabled.

http://support.microsoft.com/default.aspx?scid=kb;EN-US;969006