1. Connect the X to your computer. On your X, pull your notification bar down and see if you have the "USB connection" notification. If you don't see the notification, go to step 4.
2. Tap the notification once and try one of the other USB connection modes. You'll have these modes to choose from:
PC Mode
Windows Media Sync
USB Mass Storage
Charge Only
Try PC Mode or USB Mass Storage.
3. Check your computer, watching if it starts the device install dialog down on your System Tray in the lower right-hand corner.
4. If this doesn't work, then reinstall the Motorola drivers mentioned by a previous poster. If that still doesn't work, I would say that you have a USB port or USB driver problem on your computer.
2. Tap the notification once and try one of the other USB connection modes. You'll have these modes to choose from:
PC Mode
Windows Media Sync
USB Mass Storage
Charge Only
Try PC Mode or USB Mass Storage.
3. Check your computer, watching if it starts the device install dialog down on your System Tray in the lower right-hand corner.
4. If this doesn't work, then reinstall the Motorola drivers mentioned by a previous poster. If that still doesn't work, I would say that you have a USB port or USB driver problem on your computer.