For the past few days now, I've come across a peculiar error with my Dock. It won't respond to my mouse moving down to the bottom of the screen until I click it, and when it does, it won't change the active icon when I drag my mouse over it. Here's a video of what happens.

This is accompanied by a peculiar error in Mission Control where I can't click on windows to enter them until I drag them a little bit. Here's a video of that phenomenon.

Update: I've found out that this happens when I attach my external mouse (a Cyborg R.A.T. 5) to the computer. I'll test other external mice and then maybe file a bug report with Apple.

  • Upon a further Google search, it looks like the Cyborg R.A.T. line in general has problems with Macbooks. I guess I won't be using it anymore.
    – Joe Z.
    Oct 2, 2015 at 17:53
  • 1
    I've added 'Cyborg R.A.T. 5' to your title, as your research may prove useful to future Googlers.
    – Tetsujin
    Oct 2, 2015 at 20:53

1 Answer 1


Okay, so it turns out the thing I was doing wrong was having an external mouse attached to the Macbook. As soon as I detached the mouse (an old Cyborg R.A.T. 5), everything started working normally again.

But it's still weird that that happens.

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