Testing SSL VPN from inside?

Sorry if this is silly but I find no references in the forums or docs or KB. I am configuring a simple, browser-only SSL VPN and attempting to test it from inside the network the FG is securing. I worked on this a number of hours, testing from inside the secured network, but always get Error:Permission denied when I attempt to log in to the VPN. Then I finally decided to go to town and access the Internet from another place -- and the VPN works fine! I must be missing some firewall rule or that there is something else preventing this. I would really prefer to sit here in my office rather than at Starbucks to do this work. Summary: FG50B running v4.0.2,build0099,090407 3 VLAN' s inside, one of which is where I want to go with the VPN from the outside. Using a PC on any of the 3 VLAN' s, including one which is routed ONLY to the Internet, I always am prevented from logging in to the VPN. I use the appropriate port on the outside static IP of the FG device and get clear through to the login screen before being denied at login. If I go somewhere else and access the Internet doing EXACTLY the same thing to the same IP address (I just refresh the same browser window on the same netbook with a new connection), I can log in, so the basic config is fine. Thanks for any help. Randy in Oregon