So this occurs on 3 different computers, is this a network set up? And it happens even if you use a different mouse...on all 3 systems? A little clarification on this might help.
I'm having weird problems with my MSI GS-502 mouse I have been using since ca. 2008. The mouse suddenly seeems to corrupt whichever computer it is connected to (I tried 3 PCs running Win Vista, 7 and 8.1).
The cursor moves nomally but mouse clicks are only registered within one app or window that is open - eg. I have File Explorer open in a scaled down window and I can click within the window but mouse clicks (or even hovering the cursor above an icon/button) aren't registered in other parts of the screen, eg. on the desktop or the taskbar. When I press the mouse button REALLY hard when pointing the cursor to a different part of the screen, the "focus" changes to that part so that I can click within it but not elsewhere. Also, after a while with the mouse connected, sounds stopped working (I can change the system volume but no sounds come out - both within Windows, in games etc.). The problems persist even when I disconnect the mouse and use a different one or the touchpad - the only solution is to restart the PC which changes things back to normal - until I connect the mouse again.
Any idea what this could be caused by? I'm ready to throw the mouse away but I'm pretty curious about what causes the problem. Could the mouse be somehow "corrupt" and cause a problem with system drivers?

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