Ps/2 Scroll Mouse Does Not Work; Usb Keyboard Or Pointing Device Does Not Work - HP Pavilion zd7000 - Notebook PC Troubleshooting Manual

PS/2 scroll mouse does not work

■
On some models the internal pointing device (pointing stick or
TouchPad) must be disabled before the scroll feature on an optional
external mouse can be supported. Some of these models include a
utility, often called the Setup utility, in which you can set the system
to disable the internal pointing device when an optional mouse is
in use.
■
Disconnect the scroll mouse, initiate Standby, then reconnect the
scroll mouse. (To resume use of the TouchPad on some models, you
must initiate Standby or shut down the notebook, then disconnect the
scroll mouse.)
USB keyboard or pointing device
does not work
Refer to your model-specific documentation for information about
USB legacy support.
Troubleshooting
Problems and Solutions
2–27