Hi All I am new owner of Mac book pro I am not sure if this is the right place to post this question or not. I recently upgraded to Yosemite and since then after I enter my Mac password it loads for few seconds approx 30secs this was not happening earlier is this normal on Yosemite ?? I want to install internet explorer on Yosemite how can I do it? I've my company app which only runs on IE not other browsers?? Must have apps on Yosemite ?? Thanks for the help hope to learn a lot from here.