Can't drag titlebar of window to next screen

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Can't drag titlebar of window to next screen

For some reason, no Finder no web browser window will let me drag the titlebar of the window to move it around. It shifts maybe a few pixels, but if I want it to move to my extended display it refuses to do so even with my window not maximized or kiosk mode. This is happening in High Sierra 10.13.6 on an iMac 11,3 (the maximum OS for the computer. It used to work just fine. Now, even though the mouse cursor will navigate to the adjacent display, I can't make windows open on the adjacent display. What's going on here?

Current Pro Desktops

Posted on Apr 11, 2021 1:14 PM

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Answer 1

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MrHoffman

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126,151 points

Apr 11, 2021 5:37 PM in response to a brody

You can use your keyboard as a mouse, as a test:

Control the pointer using Mouse Keys on Mac - Apple Support

Option-Command-F5, or tap Touch ID thrice.

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Answer 2

den.thed

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Apr 11, 2021 5:23 PM in response to a brody

I’ve been using the cheap-o Logitech MK-120 Combo’s with all of my I Mac’s and Mac Mini’s for years. Never had a single issue connecting, startup manager or recovery commands with any OS from 10.4 thru 10.15. The only time I ever retired one of the keyboards, was when the letters wore off.

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Answer 3

a brody Author

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84,049 points

Apr 15, 2021 5:01 PM in response to MrHoffman

After navigating to the universal access and coming back to my machine 12 hours later, it suddenly freed up again. Really weird.

It wasn't working, even though I didn't technically change any universal access settings. Maybe just the virtue of opening it resolved some corrupt preference. Thank you. I need second mouse anyway for my work from home laptop.

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Answer 4

a brody Author

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Apr 11, 2021 1:36 PM in response to BDAqua

Button seems fine. Restarted.

iHome Mouse

I also put up my mouse pref.

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Answer 5

BDAqua

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245,417 points

Apr 11, 2021 1:24 PM in response to a brody

What all is checked in Sys Prefs>Mission Control?

Can we assume you restarted?

Is this an Apple Mouse? Button giving out?

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Answer 6

den.thed

Level 10

82,540 points

Apr 11, 2021 1:58 PM in response to a brody

The Mission Control settings look good. I would try a different mouse as BDAqua suggests.

Then if that doesn’t help, give it the old Safe Mode trick followed by a normal restart.

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Answer 7

a brody Author

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Apr 11, 2021 5:11 PM in response to den.thed

Ordered a new mouse, since I didn't have one. Pray that works.

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Answer 8

a brody Author

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Apr 11, 2021 5:27 PM in response to den.thed

Yep, Logitech is what I ordered. I used to work at Staples and we sold those all the time.

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Answer 9

a brody Author

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Apr 11, 2021 5:34 PM in response to a brody

Oh the plot begins to thicken. Apple menu -> system Preferences -> Monitors does not let me drag the menubar from one display to the other either. Most curious.

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Can't drag titlebar of window to next screen

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