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(Windows 7 x64, Logitech MX1100 mouse)
If I click/hold/ the mouse, like on the title bar of a folder to move it, or to select text, the mouse will randomly "unselect" it and then randomly reselect at another point in the movement.
For example, if I were to start mouse-selecting the above paragraph, starting with "movement." and then moving backwards, it might select as far as "reselect", but then the selection would disappear, only to start selecting again from "will randomly".
I realize this would sound like a clear-cut case for a hardware issue in the mouse button, but I've narrowed out that that's not the case. The problem doesn't happen if I drag-move/drag-select slowly. But I can make the problem very apparent if I click and drag something fast. For example, if I click and hold the title bar of a window, and then start quickly dragging it around in circles across my monitor, the window will get "dropped", and a new window will get picked up in the process.
Additionally, if I right-click anywhere to get a context menu (in Windows, programs, anywhere/everywhere), and then relatively quickly press the left mouse button to select something on the context menu, the context menu will disappear as if I had clicked "through" it.
I haven't had any driver changes, system updates, or significant software changes/updates/installations recently, that might be a precursor to this issue. Again, the oddity seems to be the "speed" of action.
Another note -- it seems that "lag" has a bit to do with it. If I click and drag a window around quickly, it might start to "lag" a tad bit, like it's perhaps moving too fast for Windows to keep up with the refresh/redraw rate, and that's usually synonymous with this odd deselect bug happening.
(Batteries fully charged, no damage or recent changes to mouse, no changes that might affect/block wireless communication)
EDIT:
If I click and hold on something, like a folder in Windows Explorer, it sees it as a double-click. Yet, if I just click and let go once, it doesn't follow through like a double-click (I thought maybe the single-click link-behavior might have been inadvertently activated).
I am having this exact same problem with my Logitech Performance MX and was wondering if you bought another one or if they replaced yours. – Macondo – 2017-09-19T04:54:20.203
I had the very same issue with my wired Logitech M500. I really love the way it fits my hand, but this annoying "jumps" when selecting text were killing me. Interestingly, I had a USB 3.0 hub and a monitor in between the connection of the mouse... obviously not the most sound solution possible as it turned out. So connecting the mouse directly to PC resolved my issue. Hope it was helpful. – Oleksii Zymovets – 2020-02-23T22:20:56.867
4Have you tried a different mouse? Have you tried plugging the receiver into a different USB port? Have you added any new devices to your computer that connects over USB (or in general)? – Ben Richards – 2012-12-11T23:13:31.730
5As sidran said, try a different mouse. I had a mouse left button go bad on me and it exhibited almost the same issues you've described. – Karan – 2012-12-11T23:27:34.270
1I agree with the hardware issue. On a slightly bad button, it will often work fine on slow speed - but when we move the mouse faster the pressure points changes on the button, which may trigger more sensitivity problems. If the mouse is still on warranty, it's highly advised to try another mouse so you can address it as soon as possible. – mtone – 2012-12-11T23:53:42.507
I certainly would try a different mouse (and a different USB port) before I looked for other causes. Also, if this is a laptop I'd want to be sure that your other hand wasn't resting on the touchpad. – Daniel R Hicks – 2012-12-12T02:29:22.003
Thanks for the suggestions. Unfortunately, the problem's disappeared before I could further diagnose :/ But if/when it returns, I'll swap mouses. – Coldblackice – 2012-12-17T09:52:02.297
I have a Logitech Bluetooth travel mouse for my Samsung Ultrabook and I have seen the behaviour you describe come up in the last few weeks. Most annoying. I recently put in fresh batteries, so these should still be good. USB cannot be the problem, touchpad is switched off. So probably hardware failure. Plugging in a USB mouse, I find the problem goes away. So, I'll be shopping for another bluetooth mouse soon. Thanks @BenRichards!! – teylyn – 2013-03-23T04:31:39.433