hopper

Thanks Dai, but I had tried that before posting

Actually I was looking more along these lines (which are basically the same commands as XP):

Check and repair Winsock corruption.
Click Start. In the Start Search dialog box, type: cmd, and right-click cmd.
Click Run as administrator.
Type: netsh winsock reset, and then press the ENTER key.
Type: Exit and press ENTER.
Restart the computer.

Reset the TCP/IP protocol.
Click Start. In the Start Search dialog box, type: cmd, and right-click cmd.
Click Run as administrator.
Type: netsh int ip reset, and then press ENTER.
Type: Exit and press ENTER.
Restart the computer.

I had resolved the LSP problem without any of these steps, simply removing newdotnet did the trick.