[jpc0480]

Had the same problem on my Titan awhile back. My problem that was somehow a pin inside the usb port on my phone broke off. There was supposed to be 5 gold pins and when I counted there were only 4... Anyway Alltel had to send me another phone to replace the phone. Thankfully it was still under warranty. I searched all over the place and never found a problem related to the computer. It was all the phone. I think one guy did have bad USB drivers, but if you reloaded your drivers just as I did, I think you will find the problem to be with the pins in the phone.

Hope that is not the case and you find a solution...