Sony PCV-7762, PCVA-IMB4A How do I set up my mouse for left-hand use?, Why doesnt my keyboard work properly?

VAIO Digital Studio Computer Quick Start
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How do I set up my mouse for left-hand use?
1Click Start in the Windows taskbar, then click Control Panel.
2Click Printers and Other Hardware, then click Mouse. The Mouse
Properties dialog box appears.
3From the Buttons tab, select Switch primary and secondary buttons under
the Button Configuration options.
4Click Apply, then click OK.
Why doesn’t my keyboard work properly?
❑Check that the keyboard is securely plugged into the Keyboard port.
❑Save and close all open applications. Turn off your computer, wait
approximately 10 seconds, and then restart your computer.