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My acer laptop has developed a problem where after 2-3 hours of operation at work the keyboard will not register all the letters I am typing. In some cases some letters will not register at all. In all cases the letters are random. i've replaced the keyboard and have connected an external keyboard with the sme problem occurring. If I let the unit set for 30 minutes or so it works fine for about 10 minutes before the problem arises again. i suspect there is a problem with the motherboard. i run diagnostics and xp tells me components are working okay. any suggestions?

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Sure it's probably over-heating. you can blow compressed air into the exhaust vent but that's a band aid at best. All that does is blow the giant dust clog deeper into the system for even more trouble later. The best method,the only way I'll clean a laptop, is to take the thing apart & remove/dissasemble the cpu heatsink & fan,then clean it out with air. Also, apply new thermal paste if you do this. It sounds scary but if you put the screws from the bottom in a container,another for the top ones & take your time,even a complete novice with a screw driver can do it. Good luck.

Posted on May 17, 2010

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