, cbae wrote

@Doctor Who: Did you try any of these suggestions? http://www.microsoft.com/windowsphone/en-us/howto/wp7/basics/the-zune-software-doesnt-recognize-my-phone.aspx

I have tried 3 different USB ports, including a USB hub, which has its own power supply, separate from my PC's power supply.  I've tried USB ports on the front of my PC and the back of my PC.  I've tried 2 different USB cables.  I've tried 2 different PCs with the Zune software installed on each.  I've tried deleting all of my music and some of  my apps.