home folder in active directory

Hello,

My environment is a Microsoft Active Directory 2008 SP2 domain environment. Our users home drives are hosted on a Windows server. Upon login on a Mac workstation, the user's home drive should be mapped automatically and appears on the dock.

I'm working with Mac OS x 10.6.8 on the machine. The home drives start mounting on the dock as a "?" icon and aren't accessible. I can create a manual mapping of the shared network folder and that works fine, but it's the automatic mapping done by Active Directory that isn't working properly and I'm frankly stumped at the moment.

Does someone can help me ?

Thank you,

Olviier