Magic Mouse and Trackpad Become Randomly Eratic

My setup:
2011 Macbook Pro
27" Thunderbolt Display
Wireless Keyboard
TrackPad
Magic Mouse
My Problem:
about once every 2 or 3 days, my mouse and trackpad will become eratic (at the same time) Im unable to reliably control them and the cursor will move sparaticlty on the screen. Up to this point, my only option has been to restart. Once the system restarts, Im fine. This has happened with with several apps open, and with no apps openend, and I have dropped into a terminal window to look at the process table ( ps -ef | more ) and I dont see a hung process or one that might be eating CPU or memory. All software and firmwares are up to date.
Anyone got any ideas ???
Bill

I have the same problem on my 27" imac with Lion, but I have found that they only play up when the apple tv is being used in a seperate room. I have confirmed this strange occurance by turning the apple tv off, they work fine, then i turn the apple tv on, they are eratic once again. I am starting to think that it is a bluetooth syc issue, not sure..... I seem to be able to make or stop the eratic behaviour by the flick of a switch.

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Thank you for contributing to Apple Support Communities.
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Dear Everyone,
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I've been using the Apple rechargables in my keyboards/mice/trackpads for over a year now. They last 3-4 weeks in my usage pattern but I have spares ready to go when they get weak.
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I couldn't for the life of me get the bluetooth magic mouse and keyboard working in a bootcamp'd windows xp. Here are the steps that I performed to finally get it to work. The assumptions are that you are running a clean XP build with SP3 and all windows updates installed.
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It depends on how far it is and how thick your walls are. If there plasterboard partitions and only 10 feet apart then probably.
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Magic Mouse and Trackpad Become Randomly Eratic

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