Networks

I am having difficulty with one machine connecting to the exchange server via vpn. The issue seems to have started about the time I installed office SP2, approximately 2 weeks ago. I believe the problem may exist with the user profile because I was able to create a new user (myself) and Outlook was able connect via the VPN. Attempts to resolve the issue include:
1)Flush DNS & edit host file to include fully qualified name (Server.domain.serve)
2)Reset Outlook to default by removing the outcmd.dat file, and then restarting outlook.
3)preformed full virus scan and removed all tracking cookies-no viruses found
When connected inside the domain Outlook opens, connects and functions perfectly. When outside of the domain and connected via VPN, this user/machine only, Oulook hangs during the load up process, then freezes and returns meesage"outlook not responding". Return to the office and everything works well.
Any suggestions? Many thanks for any/all help.