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Solution: Open the Device Manager window. Make sure that the USB device setup is correct, and that
the assignment of computer resource and the installation of the device driver are correct.
For Windows 7 and Windows Vista:
1. Click Start ➙ Control Panel.
2. Click Hardware and Sound.
3. Click Device Manager. If you are prompted for an administrator password or conrmation, type the
password or provide conrmation.
For Windows XP:
1. Click Start ➙ Control Panel.
2. Click Performance and Maintenance, and click System.
3. Click the Hardware tab, and click the Device Manager button.
Refer to “Diagnosing problems” on page 227 and run a diagnostic test of the USB connector.
A docking station or port replicator problem
• Problem: The computer does not start when you try to turn it on, and does not respond when you try
to resume operation.
Solution: Make sure that:
– The ac power adapter is connected to the docking station or the port replicator.
– The docking indicator of the ThinkPad Mini Dock Plus Series 3, the ThinkPad Mini Dock Series 3, or the
ThinkPad Mini Dock Plus Series 3 (170 W) is on.
– The computer is securely attached to the docking station or the port replicator.
258 User Guide