Sony VAIO VAIO PCG505F User Manual page 93

Try restarting the computer. On the Windows taskbar, click the Start
button, click Shut Down, and then click Restart the computer.
If you cannot restart as described in the preceding step, you can
restart the computer by pressing Ctrl+Alt+Delete.
If the previous step does not work, slide the power switch toward the
front and hold it for four seconds. This turns off the power.
If your computer locks up while playing a CD-ROM, stop the
CD-ROM, and restart the computer by pressing Ctrl+Alt+Delete.
Contact the software publisher or designated provider for technical
support.
Use Sony Notebook Setup to change the printer setting.
In PowerPanel, select Change CPU Speed. Remove the check from Auto,
and set Speed Control to 100%.
Make sure the label of the CD-ROM is facing up.
If the CD-ROM disc requires software, make sure the software is
installed according to the program's instructions.
Moisture condensation may have occurred. Disconnect the CD-ROM
drive and disconnect the power to the drive for at least one hour.
Make sure the CD-ROM drive is properly connected. See "To connect
the CD-ROM drive" on page 43.
Clean the CD-ROM disc.
Check the speaker volume.
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