Computer Hardware
To prevent toner from sticking to a laser printer's heat rollers, apply which of the following:

Beer or Jack Daniels
Ammonia
None of these
Oil
Alcohol

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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:

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

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