HP Pavilion ze4900 Reference Guide - Page 71
If the TouchPad Does Not Work, If the TouchPad Moves the Pointer or Cursor While You Type - reboot
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Troubleshooting If the TouchPad Does Not Work ■ Press the TouchPad on-off button to turn on the light. ■ Do not touch the TouchPad while the notebook is rebooting or resuming from Standby mode. If this happens, try the following: press a key on the keyboard to restore normal operation. ■ If an external mouse is connected, the built-in pointing devices are normally disabled. You can change this setting with the BIOS Setup utility. See "Configuring Your Notebook" in this chapter. ■ Restart the notebook. Select Start > Turn Off Computer > Restart. If the TouchPad Moves the Pointer or Cursor While You Type Press the TouchPad on-off button to turn off the TouchPad while you type. Local Area Network (LAN) Problems If the Built-In Network Adapter Does Not Connect to the LAN ■ Check all cables and connections. Try connecting at a different network station, if available. ■ Make sure the LAN cable is Category 3, 4, or 5 for 10Base-T operation, or Category 5 for 100Base-TX operation. Maximum cable length is 330 feet (100 meters). ■ Select Start > Help and Support > and use the Networking troubleshooter. ■ Open the hardware Device Manager. Select Start > Control Panel > Performance and Maintenance > System. If the network interface is disabled, try to enable it. If it has a conflict, try disabling another device. 6-8 Reference Guide