My Microphone Does Not Work - Sony VAIO C1 PictureBook PCG-C1MV Quick Start Manual

VAIO® Computer Quick Start
1 Right-click the CPU icon on the bottom right of the taskbar, and click
"Edit/create profiles. The Profile editor window appears.
2 In the left portion of the window, click the power management profile you
want to set. Maximum Battery Life is the default selection when your
computer runs on battery power.
3 In the right portion of the window, double-click CPU Control. The list of
CPU control options appears.
4 Click Performance.
5 Click the File menu and select Save.
6 Close the Profile Editor window.

My microphone does not work.

If you are using an external microphone, check that the microphone is plugged
into the Microphone jack. See "Connecting an External Microphone" for details.
72