Hi David,

That sounds as though it has everything to do with the keyboard. Rather than a 
standard mouse click, you seem to be getting a Control mouse click. Try a 
different keyboard temporarily to see if things change. If the problem goes 
away it could be a stuck key or a hardware issue.

Cheers,
Carlo

On 2011-06-28, at 17:19, David Noel wrote:

> 
> Hi All --
> 
> -- My sister-in-law asked me to look at a problem on her fairly new
> iMac, and although I was able to sort something out, use of the iMac
> was greatly hindered by unwanted appearance of drop-down menus. For
> example, trying to log into gmail, if you clicked on the box for
> username, up would come a drop-down menu starting with Copy / Edit /
> Paste. Clicking anywhere on a page in most applications also would
> bring up these menus.
> 
> -- Mostly the menu would disappear on typing Return, and usually the
> box could then be typed into. Sometimes, though, clicking on a blank
> box would not select it. I tried to run Repair Permissions on her
> machine, but although I could select her main drive, I was unable to
> select the RP option.
> 
> -- Has anyone any ideas on this? The iMac does have a wireless
> keyboard (which I'm unfamiliar with), but can't think that this would
> be relevant. I couldn't find anything useful on Apple Help regarding
> menus. TIA.
> 
> David Noel
> 2011 Jun 28
> 
> 
> 
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