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keyboard skips/jumps/repeats

Hi,
I have a Dell Inspiron 700M which has recently had the optical drive replaced (twice) the motherboard replaced (twice)and the keyboard replaced (twice).  I've also reformatted the hard drive twice in the last 4 or 5 months.  The USB ports now work fine, as does the optical drive (original problems).  However as I type (on the laptop keyboard), the cursor  periodically jumps to different lines, back and forth, and sometimes repeats keystrokes.  I've even had it switch keys (y is z and vice versa) although that has not happened in a while.  Any idea what is going on?

The Microsoft comfort curve 2000 keyboard is better although I think I have had some irregularities with that as well.  Thanks!

Lianne

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slianne
Asked:
slianne
2 Solutions
 
Joediggity2Commented:
It sounds like either you have another bad keyboard or the technician that installed the motherboard the last time either didn't push the ribbon cable in all the way or may have pinched it on something.
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wiglackCommented:
Sounds like a hardware problem since both keyboards don't work right.

You should have demanded a whole new laptop after the 2nd failed motherboard.  Its clear the whole computer is defective.  Call and ask for a supervisor and complain.  Eventually they will give in.  You may have to write a nasty letter to them.
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skree358Commented:
The cursor that jumps is probably due to your thumb accidentally tapping the touchpad while you are typing. Since the Ins 700m is a small system, you really can't avoid touching the touchpad while typing. I suggest that you connect an external mouse instead, and just have the touchpad disabled.
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slianneAuthor Commented:
Thanks to all!  Not sure the problem is solved completely but bumping the touchpad seems to be part of it.  Still wondering about the repeating on the regular keyboard and the character switching on the laptop keyboard.
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