I upgraded to Mavericks last week. I have a secondary monitor, and I use Spaces. Since the upgrade, I have a frequent problem where windows will get stuck partially exposed in the top left corner of the screen, under the finder bar. I can drag it to the right, but it automatically snaps back into the upper left.

The close, minimize, and zoom buttons are all off-screen. If the window is on my right monitor (which is the main display), the missing corner doesn't show up on my left monitor.

If I zoom (maximize) the window using a keyboard shortcut or the Window menu in the Finder bar, the window simply disappears off of my screen, seeming to slide upward, even though I have no spaces or displays "above" the one I'm working in.

Stuck Window

If I go to Mission Control (Ctrl + Up), then the window appears there as partially out of the space.

Stuck Window in Mission Control

This has happened to three separate applications so far (Chrome, Outlook, and Remote Desktop), so I'm pretty sure it's not application-specific.

If I quit the application (sometimes I have to force quit), the problem goes away, but it keeps happening. It seems to occur when I switch to the application after working in another.

  • I have the same problem, and I've found that after a window disappears sometimes it will come back if I ctrl+click its dock icon and use the Options menu to move it to a different desktop.
    – Matt
    Oct 29, 2013 at 13:54
  • @grgarside Nope, this is a 21.5-inch LCD display on a Mid 2010 iMac. My secondary monitor is a Dell LCD.
    – jonnybot
    Oct 29, 2013 at 14:26
  • @Matt I did try moving the windows to different desktops, and that never quite cut it, though I didn't use that exact path (Ctrl+click, options). I've heard other people report that fixing the issue for them as well.
    – jonnybot
    Oct 29, 2013 at 14:28
  • 1
    Have you filed a RADAR or submitted a a bug report through apple's consumer-facing feedback system?
    – Brooks
    Oct 30, 2013 at 14:34
  • 6
    I'm having the same problem, and I've narrowed it down to when I send my Mac to the log in screen (I use it as a lock screen at work). It's usually the foremost application which is affected, when I log in again it'll be scrunched up top left, as you've found, but going to the log-in screen and back again will 'un stick' it. - Is there anywhere I should be sending this info in conjunction with what you've done?
    – JP.
    Oct 31, 2013 at 10:59

1 Answer 1


There is a way to get the windows back to normal without quitting the app, but it's not ideal.

If you move the dock, the applications will move back into place, the easiest way is to click the  and go to dock, then change the position, then repeat to put it back to where you had it originally.


  • returning to the login screen, in my experience, does not work at all.
    – ianbarker
    Dec 5, 2013 at 11:35
  • have they fixed this issue in the 10.9.1 update?
    – ianbarker
    Dec 19, 2013 at 10:16
  • 1
    they have not fixed it in the 10.9.1 update, I just had it happen after updating.
    – derekaug
    Dec 20, 2013 at 15:18
  • @derekaug yeah, I've noticed that as well. This update seems to have broken scrolling in some apps as well, it often doesn't work and I have to quit and re-open the app for it to work again, particularly annoying when it's finder.
    – ianbarker
    Dec 23, 2013 at 11:05
  • 2
    Another mitigation strategy suggested on the discussion @ianbarker linked to is this AppleScript: snipplr.com/view/8645/gather-windows Jan 13, 2014 at 15:07

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