Mouse keeps grabbing and highlight things without commanding it to

Nuclear --
Go to System Preferences > Universal Access >Seeing.
Turn Zoom off.

Or just press the Apple/Command key along with the Option Key and the number 8 key.
That's probably how it got messed up . . . accidental keyboard shortcuts.
🙂

Same FREAKIN problem with me!! I've rebooted and cleaned and it keeps doing it! Anyone have any ideas??

(1) Reset PRAM

(2) Make sure your firmware is up-to-date, sometimes firmware updates don't appear in Software Update, so you will have to manually check by going to http://support.apple.com/downloads and searching by your Mac model name followed by the work "firmware".

(3) Create a new and clean user account and see if the problem persists.

null

Count me in as suffering from this issue. I had posted the following in another post that seems to be complaining about the same issue:

http://discussions.apple.com/thread.jspa?messageID=12454800&#12454800


Pretty annoying - it's happening to me as well . I can imagine it might be a problematic interaction with some other software I'm running. Possible contenders that were installed around the time I started noticing this are BetterTouchTool, MenuEverywhere and Mobile Air Mouse Server. I'd be interested if you can confirm that you use any of these.

I have the same problem with my trackpad. One temporary solution that I've found to work is to click in one of the very odd places on the trackpad, such as the corners or the very top. It's noticeably harder to click in these areas, but it normally stops the glitch.

This is REALLY getting annoying!! Is it hardware? I find it hard to believe it is, because it's only started doing it as of lately. One thing I'm trying is: going into my "Trackpad" settings under "System Preferences". Then in here under "One Finger", "Dragging", I unchecked "Dragging". I can still drag but need to click and hold it in order for it to work. Bit of a hassle but if it fixes the issue for now, it's better for me! I'll see if that helps and post my results.

I am having exactly the same issues with my macbook pro 13.3 inch. It is extremely frustrating, and the only way to overcome the issue is to restart it for me. Don't know how or what it has started happening but it is so annoying!

I have the same problem using USB mouse, its not just trackpad....

Sometimes I can solve the problem by just Force Quit the application (most of the time safari), there was some incident I need to hard reboot !!! (press the power button!!)

Apple please look into this issue !

I'm having the same problem. It comes and goes; sometimes it will be fine for a day or two and then other times it happens every 20 minutes. It usually goes away after a restart and sometimes if I'm patient it will sort itself out, but it always comes back eventually. I think it started after the last track pad update.

I had similar issues with the iMac. Right and left click were all "right click" context menus. Couldn't use the mouse directed cursor function. Then windows expanded and contracted at will. Weird. I thought I'd downloaded a bizarre virus. I followed the suggestion of a poster from another thread and re-set the SMC. So far, so good, after 2 or 3 days.

Got the same problem, I think. It often happens when using the magic trackpad to move a window by clicking and holding in the title bar of the window. I tried to avoid this by using bettertouchtool, but this grabbing/highlighting bug still occurs! Most often I notice the bug, when I'm trying to type something into the active window and nothing happens... then I have to click around for some seconds until the active window responds to my keyboard!

having the same issue! someone please help!

I am also have the same issue: Mouse keeps grabbing and highlighting thins witout commanding it to and it drags windows etc. HELP!

Is your trackpad set to touch sensitive or do you have to physically press to click?