Not able to access shares via VPN

I have a user that gets the following errors when trying to access shares on our windows 2003 server via Ipsec VPN tunnel.  I also try to login to the share as the Domain admin with same kinda of result.

Cisco Ipsec vpn using a Cisco Vpn Client
Cisco ASA 5505
WIndows XP workstation
Windows 2003 Server

I have alot of people access our shares via VPN and this is the only one with issues.

 Inital error
 When I try and log in a Domain Admin from users computer
 When I try and log in a Domain Admin from users computer
GorapsI.T. ManagerAsked:
Who is Participating?
Istvan KalmarHead of IT Security Division Commented:

I think you use same subnet the VPN end and your home router, I advise to use another subnet on your HOME lan,
Ernie BeekExpertCommented:
Looks like the g is already mapped. You can check that from a dos prompt with 'net use' on the users machine.
Turn off windows firewall on server.
I would also check to make sure the CIsco client is getting an address for your DNS server.  You won't be able to find a domain controller and authenticate to it in order to access the share without DNS resolution.

With the VPN client connected, open a command line window and do an ipconfig /all.  Check and see what your Cisco VPN virtual adapter has for a DNS server.
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