Hello everyone. I think this is my first thread, but anyways I wanted to know if anyone can help out with this error I've been ignoring for some time now. Whenever I want to click on a button or do an action with my trackpad, the clicks sometimes do not respond as they're supposed to. I've recreated the error here: http://www.youtube.com/watch?v=XFCpZiUM3-E. I thought it was a general problem with the OS, but I've tried on several different Mac's and only in my machine can I replicate the error whenever I want to. Notice, that when I hover my cursor over the close button, I click my trackpad several times and only when I move it away and come back to it can I successfully do the intended action. This happens on every program, finder window, any window, etc. But, I'm almost sure it isn't a hardware problem, since I can replicate the error with a bluetooth mouse too. Also, I run several virtual machines(windows, linux, etc.) and I've never ran into the same problem there. Best regards.