I have XP, the latest TTG 2.3 and I turned off the Norton firewall. Still nothing. Even the Tivo folks can't figure this one out. TIVO is in the sytem tray with an X on him. When i try to open the program, it starts to load and then disappears. Also, I turned off the XP firewall. Everything seems to be in order but something is still blocking the program..any ideas? Could it be the Linksys router?