Well, I got there. Windows Firewall turned on, ports opened as needed...I had to reboot after changing firewall settings, I think. Maybe that was coincidence.

Much appreciated that you...

I still get a Timeout Expired error. I can still ping the server machine, and I can telnet to port 1433.

This is really frustrating, because I had this working...

I appreciate the links - I went and took a look at them. As a test, though, I disabled the Windows Firewall on both machines, and I still could...