For complicated reasons, I would like to use my PPC iMac running 10.4 to remote to my XP laptop using microsoft remote desktop for mac (both at the same physical location) and then VPN into my office. I am able to get the connection between iMac and XP laptop working without difficulty, but once I start the VPN (Cisco VPN client) the desktop freezes. Is there some reason why I should not be able to do this?