Tonight I rearranged my living room and in the process cleaned and updated my Mac. After plugging my mac back in, all rollovers in all applications stopped working. When I hover at the bottom of my screen, where my dock is, it does not show. When I hover over a URL, an action menu, etc., the mouse icon does not change and the menu does not open. I have to click to interact with any rollover event. I am using a Mac Pro(10.6.8), 2.66 Intel Xeon Quad core, and an Nvida Gforce GT 120 and, since the mouse is relevant, I am using a Naga Razor. I have already tried restarting and unplugging my mouse and replugging it in. This yielded some results, but only fixed rollovers in Firefox. Also, this work around only persists until I shutdown my computer- then I have to repeat it. I also patrolled Google for others who are having this issue and everyone else resolved the issue by unplugging and replugging. Does anyone else have any ideas or insight? Any help would be appreciated. Thanks!