[montecristo1]

I have the same issue with my Touch Pro. I have posted in other sites and appears that alot of Touch Pro users are experiencing the same issue.

Here are what I have read and fixes that worked for some...
1. Install WMD and then uninstall WMD and then install it again- plug in phone.
2. Internet Sharing/PC Connection/USB and connect- supposedly it will add the drivers needed.
3. Some whom have changed keyboards- due to malfunction- seem to forgot to connect or did not connect intact the connections.
4. Settings/connections/usbtopc and uncheck 'Enable advance network functionality'
5. Try different OEM cables- not the mini-USB- but the 11 pin OEM version.
6. Try plugin into different computers.
7. Some report Windows 7 is a no go...some say it works...some having issues with Vista as well.
8. Clean inside the usb connection of your phone with a cloth...dust can prevent it from getting a good connection.
and last but not least....9. A hard reset.

Well, I tried every single one...and not one worked for me. I came with terms that it is a hardware issue- just like the keyboard...the only fix might be getting a new phone.