Lenovo ThinkPad 600E User's Reference Guide for TP 600 - Page 141
Input Problems, Reinstall the Standard PS/2 Port Mouse driver; then reinstall the PS/2
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Title: C79EGMST CreationDate: 02/10/98 09:24:42 Troubleshooting Charts Input Problems Problem The cursor does not move after the computer awakens from one of the power management modes. All or some keys on the keyboard do not work. The cursor drifts when the computer is turned on or after it resumes normal operation. The mouse or pointing device does not work. The mouse buttons don't work. Action Make sure you followed the instructions in the online book correctly when you installed Windows with the Advanced Power Management (APM) option. If the problem occurred immediately after the computer returned from suspend mode, enter the power-on password if it is set. If an external keyboard is connected, the numeric keypad on your computer will not work. This is not a defect. If an external numeric keypad or a mouse is connected: 1. Turn off the computer. 2. Remove the external numeric keypad or the mouse. 3. Turn on the computer and try using the keyboard again. If the keyboard problem is solved, check the connection of the external numeric keypad, external keyboard, or mouse. If you still have a problem, have the computer serviced. The cursor might drift when you are not using the TrackPoint during normal operation. This is a normal characteristic of the TrackPoint and is not a defect. Cursor drifting might occur for several seconds under the following conditions: When the computer is turned on. When the computer resumes normal operation. When the TrackPoint is pressed for a long time. When the temperature changes. Make sure that the pointing device is enabled in the ThinkPad Configuration program. Make sure that the mouse or pointing-device cable is securely connected to the computer. Try using the TrackPoint. If the TrackPoint works, the error might be due to the mouse. If your mouse is incompatible with the IBM PS/2 mouse, disable the TrackPoint using the ThinkPad Configuration program. Note: See the manual supplied with the mouse for more information. Reinstall the Standard PS/2 Port Mouse driver; then reinstall the PS/2 TrackPoint driver. See the online book for how to install the driver. Chapter 4. Solving Computer Problems 123