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I have no idea why COMMAND + C doesn't always register from the first time. I sometimes try to copy something off Word, but I have to press COMMAND + C more than once for it to register, otherwise COMMAND + C just prints what was copied in clipboard before. This becomes very irritating.

However I realised that if I press COMMAND then pause for a second, THEN press C, the command always registers.

EDIT

I noticed that when I select any text in word, it takes about a second for the Cut and Copy buttons to be highlighted (otherwise they're greyed out). And THIS has direct effect on this problem. Only when they are not greyed out anymore can I copy and paste using keyboard shortcuts correctly.

What is happening ?

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Do you have any accessibility options turned on in system preferences? That can effect the key combos. –  CyberSkull Nov 20 '12 at 23:51
    
Do you have PopClip or similar installed? –  patrix Nov 21 '12 at 6:44
    
I have the same problem and I've not found a solution for it. My 2011 MacBook Pro was serviced for a new battery and I had them do their hardware test on my keyboard and it showed nothing. I thought maybe a crumb was in there or something because for me, my right command key works perfectly and the left is sporadic like yours. Because my left command key gets the most use I thought maybe it was the angle I was hitting it with my thumb but alas, no matter how I hit it when it's failing it's failing. –  Richard Nov 21 '12 at 12:17
    
If you have the same problem with other key combinations like Command+W, Command+V, etc your Command key is showing signs of wear and tear. You probably can improve the keyboard responsiveness by cleaning/lubricating the contacts of the affected Command key to improve conductivity (I know that will be difficult in a MacBook Pro, but I can't think of another solution, except replacing the keyboard). See jagshouse.com/fixingkeyboards.html and superuser.com/questions/313488/… for more information. –  jaume Nov 29 '12 at 13:08
    
@jaume I really doubt its wear and tear, the laptop is less than a year old. –  Render Nov 29 '12 at 22:13

protected by Community Mar 6 '13 at 23:26

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