Last week I had a service call for a replacement laptop to be installed at a agents office. Model is a Ibm Thinkpad 600. The original problem with the old laptop was that the mouse cursor would automatically slide across the screen on its own. Soour department sent out another laptop to be installed and when I went to do a shell swap keeping the old hard drive with all information on it and put it into the new shell or laptop the original problem with the mouse went away but that created a new problem because the Scroll lock, number lock, and cap lock lights on the exterior keyboard kept blinking on and off consistently. The agent uses a docking station for laptop also. I attached a different keyboard to the docking station just to check the keyboards and the light still were blinking. So I then forced the dockable to shutdown and restart and went into the config to try to reinitialize the system well that also did not correct the problem. If anyone has any ideas please drop me a line. Thanks