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84 Solving Problems
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Unexpected Characters
Touch Pad or Mouse Problems
CHECK THE AC ADAPTER — Check the AC adapter cable connections. If the
AC adapter has a light, ensure that the light is on.
CONNECT THE COMPUTER DIRECTLY TO AN ELECTRICAL OUTLET — Bypass
power protection devices, power strips, and the extension cable to verify that the
computer turns on.
ELIMINATE POSSIBLE INTERFERENCE — Turn off nearby fans, fluorescent
lights, halogen lamps, or other appliances.
ADJUST THE POWER PROPERTIES — See the Dell Inspiron Help file or search
for the keyword standby in the Windows Help and Support Center. To access
help, see page 18.
RESEAT THE MEMORY MODULES — If the computer power light turns on but
the display remains blank, reseat the memory modules. (For instructions, see
"Memory" on page 105.)
DISABLE THE NUMERIC KEYPAD — Press <Fn><Num Lk> to disable the
numeric keypad if numbers are displayed instead of letters. Verify that the
numbers lock light is not lit.
CHECK THE TOUCH PAD SETTINGS
1 Click the Start button, click Control Panel, and then click Printers and Other
Hardware.
2 Click Mouse.
3 Try adjusting the settings.
CHECK THE MOUSE CABLE — Shut down the computer (see page 103).
Disconnect the mouse cable and check it for damage. Firmly reconnect the cable.
If you are using a mouse extension cable, disconnect it and connect the mouse
directly to the computer.