Hello, my name is Arif Ahmed, Windows Advisor.
I would be happy to help you.
This is happening because the monitors have different resolutions.
Please go to the Display Settings. Make sure both monitors have save resolution settings.
If there is a mismatch of resolution between the two monitors, please change one of the monitor's resolution and make them same.
Click on Monitor 1 and check the resolution.
Click on Monitor 2 and check the same.
Now make sure same resolution is set for both.
Yeah... but no. Thanks for taking the time to reply, but all three of my monitors are 1920x1080. All three are standard business tier Dell 16:9 monitors. I tried changing to another resolution and then changing back. I've tried with an Intel display adapter and with an NVIDIA display adapter. Nope, and nope again. Having a common resolution doesn't change things. I wanted to try updating drivers, but I already have the latest (and I'm not about to roll backwards to test this). No joy in mudville today.
To be honest, I'm not surprised resolution doesn't change anything. Corners aren't sticky *because* of their resolution or mismatched resolution. Corners are sticky because someone out there actively programmed the OS to recognize a collection of pixels at the corner of the monitor and to then hijack normal mouse behavior at that part of the screen. Why? I can't imagine. Anything I come up with is negated by having edge snap or window button - arrow shortcuts.
So far, the only suggestion from Microsoft that works to turn off this undesirable, also requires us to disable some perfectly useful features (e.g. "snap") ... even though they should not require sticky corners to function. (In fact - they worked fine in prior versions of Windows.)
This has been a reported issue for over 5 years. That's an eternity in software time, with this thread simply being the latest in a series of recurring threads begging for relief to this issue. The "fix" seems to be entirely straightforward - just provide an option to turn off a feature we don't want. Why haven't they? Seems safe to presume that Microsoft does not see this as a nuisance and has no intention of "fixing" it. Not what I want to hear, but it seems clear.
Meanwhile, there appear to be third party solutions that cause the mouse pointer to skip over the sticky pixels. While I'd rather not install special software to resolve what should be a simple configuration setting, that's where we are.
So many things with Windows 10 that I just don't like and haven't been able to get used to. Overall, I haven't personally noticed any improvements with Windows 10, either. Maybe they're in there... I just couldn't name a single thing that's better today from Windows 7. I have a Windows 7 machine and a Windows 10 machine. I do the same things on both. I'm far more efficient in Windows 7. And coincidentally, less frustrated using it. But hey, that's my experience. I'm sure there are plenty of people who think that's crazy talk. Although... I kinda doubt those people landed here after searching for "solution to sticky corners or sticky pixels". Right?