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Two different mice?mouses? work for a while and then the light connection gets intermittent and eventually is lost. The pointer is then inactivated - but I can use the scroll wheel on the mouse and activate the right click button.

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Hi Jane, welcome. Please can I ask you to provide more details, what OS and hardware you are using? This will help us help you faster :) Thanks. – stuffe Apr 18 '12 at 12:18
Do mean two mice connected at the same time? Or one connected at a time, exchanging them as a test? – JRobert Apr 18 '12 at 13:50
a previous post — which post? (And if it's the same, then that smells like a duplicate?) – Arjan Jul 27 '12 at 10:19

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Are they plugged into the same 'upstream' USB device, such as two ports on the same keyboard? Ideally, you'd have them plugged into individual USB ports on the Mac itself.

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Sorry. I wasn't clear. – Jane Holmes Bernstein Apr 19 '12 at 11:31
MacAir, OS Lion, one mouse at a time, same problem. Mouse 1 worked for a couple of weeks post upgrade, then light started to flicker and eventually went out. No light, no pointer movement. Scroll and right click work. Mouse 2 stopped working after one day (same outcome). Devices don't work on Windows now, but Control Panel say they are working correctly. – Jane Holmes Bernstein Apr 19 '12 at 13:14
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Realized i forget the troubleshooting step you ALWAYS try first... Shut down MacAir and retried mouse. It worked - for 53 minutes! Now, lights up for several seconds and then shuts off. [Shut down the Windows machine and other mouse works again on that.] – Jane Holmes Bernstein Apr 19 '12 at 19:11

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