While connected to my PC through USB, my Tilt's pass through worked fine for several days. Now, it will say "Locating" for a few seconds and then tell me that the connection is lost. I have already unchecked my Proxy box, and checked the box to allow Wireless connection while connected to PC. The WiFi will work OK under these conditions and I continue to get email, both push and pop, but the Pass Through will not work. Any ideas?