It's been going on for a few days now and for some reason only in Firefox(not microsoft word, adobe reader, chrome, etc) the mouse pointer will disappear or flicker back and forth for a little bit if I leave the mouse alone for a just a second or two. It happens on any webpage. But the strangest thing is if I even hover over Firefox but do not have control of it the mouse pointer will blink/flicker/disappear. I had this problem happen on firefox 10 and firefox 10.01 and even just applied a windows update but all to no avail, the problem persists. Any help would be greatly appreciated thanks!

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