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HP pavilion xu100 Service Manual

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Troubleshooting and Maintenance 
 
Troubleshooting Your Computer 
  
Reference 
Guide 
117 
•  Check settings in the BIOS Setup utility: 
1.  Restart the computer: click Start, Shut Down (or Turn Off Computer), Restart. 
2.  When the HP logo appears, press F2 to enter BIOS Setup. 
3.  From the System Devices menu, make sure Infrared port is enabled and FIR mode 
is selected. 
4.  Press F10 to save and exit BIOS Setup. 
•  Make sure only one application is using the infrared port. 
•  For Windows 98, see c:\hp\Drivers\Fir\Readme.txt for additional information. 
Keyboard and pointing device problems 
If the pointer is difficult to control 
•  Adjust the pointer controls: click Start, Settings, Control Panel, then double-click 
Mouse (Windows 98 or 2000), or click Start, Control Panel, Printers and Other 
Hardware, Mouse (Windows XP).  
If the pointing stick doesn’t work 
•  Don’t move the pointing stick while the computer is rebooting or resuming from 
Standby mode. If this happens, try the following: 
•  Press a key on the keyboard to restore normal operation. 
•  Suspend and resume operation using the blue sleep button. 
•  If an external mouse is connected, the pointing stick is normally disabled. You can 
change this setting with the BIOS Setup utility—see “To run the BIOS Setup utility” 
on page 135. 
•  Restart the computer: click Start, Shut Down (or Turn Off Computer), Restart. 
If the scroll button doesn’t scroll in some applications 
•  Some applications do not support the default type of scrolling used by the scroll 
button. You can use Mouse in Control Panel to make the scroll button work like a 
standard middle mouse button in all applications. 
If a PS/2 scroll mouse doesn’t work 
•  The mouse must automatically replace the pointing stick for the mouse’s scroll 
feature to work. In the BIOS Setup utility, make sure the PS/2 Pointing Devices 
option in the System Devices menu is set to Auto. See “To run the BIOS Setup 
utility” on page 135.