Wired mouse only toggles between desktop and launchpad

Sep 28, 2011
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Hi All
All of a sudden my wired mouse on my iMac will only toggle between my desktop and the launchpad. It will not open anything that is actually clicked on. All of a sudden this started happening. It has rendered my computer useless. It doesn't matter if I right or left click. Problem continues.

Two strange things though:
1. When I restart my computer, I CAN choose which user to open with the mouse. After that point on, I have no more control with the mouse.
2. Just before my mouse stopped working, I couldn't scroll in safari anymore--either by using my scroll ball or actually clicking on the scroll bar. I could still scroll in Firefox. Not sure if this is related-- just an observation before the whole thing messed up.

Any ideas what this could be?

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