For awhile now, every time I connect to a Wireless network, Vista has been telling me that I was connected to two networks:

1. The actual wireless network (Local and Internet)
2. Unidentified network (Local only)

These systems were annoying at first, but I started having problems with VPN connections and accessing remote networks. The normal web browsing and email traffic seemed to be fine, but my job requires me to use VPNs pretty extensively, so it was really painful.

Finally, after lots of troubleshooting, I found the solution tonight! There were two entries in my routing table for 0.0.0.0, the first being the IP address of my wireless router, and the second being an old static entry from when I was configuring a router weeks ago. So, just a simple "route delete 0.0.0.0" from the command line has fixed this annoying issue.

Hope this helps someone else!