Dell Latitude Latitude LT System User Manual page 103

Trouble With Keyboard/Glide Pad
Question: Why doesn't the keyboard or the glide pad function?
Perform a software reset by pressing Ctrl+Alt+Delete.
If you cannot perform a software reset, slide and hold the power switch for more
than five seconds to turn off the system. Five seconds later, turn the computer
on.
If you still cannot turn off the system with the power switch, slide the reset
switch on the bottom of your computer to turn off the system. Five seconds later,
turn on the computer by sliding the power switch.
Question: Why doesn't the glide pad function correctly?
Confirm the surface of the glide pad is completely dry and free from dirt and
grease.
Confirm the item Internal Pointing Device in the Advanced menu of the Setup
Utility is enabled.
Trouble With Peripherals
Question: Why don't expansion or peripheral devices function?
Confirm they are correctly connected to your computer or the external floppy
disk drive.
Confirm the external floppy disk drive is connected correctly to the computer if
peripheral devices are connected to the external floppy disk drive.
Confirm drivers necessary for operating ports on the devices are installed.
There may not be a free IRQ (Interrupt). Free up an IRQ from a built-in device.
Question: Why can't I print?
Make sure the printer is turned on.
Check whether the external floppy disk drive and the printer are connected
correctly.
Check whether the printer has enough paper.
Check whether the printer driver is installed.
Make sure LPT Port in the Advanced menu of the Setup Utility is set correctly.
Troubleshooting B-5