I've been having some terrible experiences lately with my Mac. Whenever I restart, it takes above 1 minute or more to get to the desktop. And then, the Mail application takes some more time to open up, and while it opens up, everything freezes, and then it goes back to normal. Also, it never closes when I use Apple+Q, so normally I need to Force Quit. Seeing this, it seems the problem is the Mail app, but I haven't been able to correct that. Some other apps also take longer than they used to open in the past. So was thinking about a clean install. Do you guys think this really helps?