Since upgrading, it takes my account forever to fully log in. It will load the desktop background, but then get the spinning wheel and it stays like that for over an hour. I timed it this morning and it took 70 minutes for it to bring up the dock and desktop files, then another 20 minutes before I was able to actually use it. I don't have any apps set to open at log in and there is nothing in my login items. Once I use a different account, that works fine, but eventually will do the same thing. I thought it might be something I'm installing, but I've only installed one thing, an add-on for Firefox.