Lenovo THINKPAD T40 User Manual page 45

lost. To reset the computer, press and hold the power button for 4 seconds
or more. If the system is still not reset, remove the ac adapter and the
battery.
Problem:
Your computer does not enter standby or hibernation mode.
Solution:
Check whether any option has been selected that would disable your
computer from entering standby or hibernation mode.
Problem:
The computer does not enter standby mode as set by the timer under
Windows 98 or Windows NT
Solution:
For Windows 98:
The generic CD-ROM or DVD-ROM driver for Windows 98 accesses the
internal CD-ROM or DVD-ROM drive every 3 seconds to see whether a
CD-ROM is inserted in the CD-ROM drive or the DVD-ROM drive. This
prevents your computer from entering standby mode even after a timeout. To
enable the computer to enter standby mode, do the following:
1. Click Start.
2. Move the pointer to Settings and Control Panel.
3. Click Control Panel, and then double-click System.
4. Click the Device Manager tab.
5. Click the + mark of CD-ROM.
6. Double-click the name of the CD-ROM or DVD-ROM.
7. Click the Settings tab.
8. Clear the Auto insert notification check box.
Windows 98 no longer detects the insertion of a CD-ROM or a DVD-ROM
automatically.
For Windows NT:
If you enable the CD-ROM AutoRun feature, the timer cannot trigger the
computer to enter standby mode. To enable the timer, disable the AutoRun
feature by editing the configuration information in the registry as follows:
Note: Before you make any changes, back up the computer registry and
configuration. If something goes wrong, you can restore the system
registry and configuration files.
Problem:
The system does not wake up at the time set on the timer, if the computer
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Chapter 2. Solving computer problems
Solving computer problems
23