Computer Hardware
A keyboard locks up intermittently even when replaced with a new keyboard. What is the LEAST likely cause of the problem?

A second bad keyboard
The keyboard controller chip
The motherboard
The keyboard connector
None of these

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Computer Hardware
You run a super wing-ding diagnostic program on your PC, and it reports that your hard drive, microprocessor, RAM, and video card have seen better days. To resolve this problem you should:

run an exhaustive memory check
check to see if you have a software problem
replace everything at once and rerun the diagnostic
get another copy of the diagnostic program
replace each part one at a time, rerunning the diagnostic before replacing the next part.

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