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Tech: track pad gone wild - gremlins?

Genie 24 Oct 11 - 10:16 PM
s&r 25 Oct 11 - 05:48 AM
Will Fly 25 Oct 11 - 07:11 AM
Genie 22 Nov 11 - 02:59 PM
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Subject: Tech: track pad gone wild - gremlins?
From: Genie
Date: 24 Oct 11 - 10:16 PM

I've always used track balls or track pads with my laptops (all various incarnations of Apple / Mac) and never had a problem until just a month or ago, when suddenly the text I was typing began to migrate to other parts of the page and/or of the page would suddenly be highlighted -- meaning that the next keystroke would delete part or all of what I had typed.

(This has happened at least 5 or 6 times since I started typing this post. When the computer -- I suspect the problem is in the trackpad or its software -- starts doing this with a vengeance, I have to type everything very slowly, watching the screen constantly, to make sure I don't wipe everything out in a single stroke or end up with words or phrases showing up inside of other words or phrases.

When this problem started, at first it was very occasional and sporadic. But over a week or two it increased to the point where I had trouble ever typing a simple, short sentence. It also doesn't seem to matter whether I'm online typing at Mudcat or Facebook or typing an email, working in my calendar program (Now Up-To-Date), my address book, Text Edit, or any other program.

Finally, I ran Apple's "Disk Utility" program on my MacBook to "Repair Permissions" and to "Verify" my hard drive, and for a short while the problem seemed to go away, though there were still minor glitches with the track pad (like images on my screen scrolling up or down when I haven't clicked anything on the trackpad to command that).   This seems to suggest that the trackpad is too sensitive, so it picks up what my hands are doing sometimes, even when my fingers are not touching the trackpad or any keys.

But I'm wondering if anyone else has ever experienced this sort of thing. And whether it happens only with a track pad or if it can also happen when using mice (mouses?).

I am hoping whatever this gremlin is, it's something that can be handled by running a good anti-virus program or Disk Warrior or the like and won't require replacing parts of the computer.


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Subject: RE: Tech: track pad gone wild - gremlins?
From: s&r
Date: 25 Oct 11 - 05:48 AM

I think I'd try cleaning the track pad with a touch of spectacles cleaner or a wipe - I get similar problems once in a while, and it works for me.


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Subject: RE: Tech: track pad gone wild - gremlins?
From: Will Fly
Date: 25 Oct 11 - 07:11 AM

The membrane or track pad, or both, could probably do with a good clean.

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Subject: Tech: track pad gone wild - overheated battery
From: Genie
Date: 22 Nov 11 - 02:59 PM

Well, I cleaned the track pad several times, ran Disk Utility several times (once from the OS operating disk), and did everything I could think of or that has been suggested.
Nothing fixed the problem, although it was intermittent - sometimes hardly a problem but other times so bad that I couldn't type a short sentence without typing each letter slowly, watching to make sure that the letters were moving forward (not skipping around all over the place) and that nothing had been highlighted (which would mean the next key stroke would delete everything).

Finally, I took it into my local Mac shop and it turns out the culprit was my battery, which had been overheating. (I had noticed the battery cover bulging in the last 2 or 3 months instead of being flat against the rest of the laptop case.)   Got a new battery and now everything works just fine.

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