I have an early 2009 24" iMac that almost always freezes on boot up. First it takes an usually long time to get to the desktop, sometime sitting on a gray screen for 3-5 minutes, then when the desktop appears all of my open on startup apps open normally, my menu bar utilities work fine, and I can move my mouse around. The mouse however will not let me click and keyboard input has no effect. I know its not a problem with the keyboard or mouse because I can mouse over my dock when its doing this and it does not magnify, its like the computer is in a different layer than the mouse and keyboard. It does this for another 5 minutes or so and then works normally. I almost always put my Mac to sleep and only shut down when I need to install updates, could this be affecting it? It did this in snow leopard and at first I thought it was this game I had that was ported over to the mac using cider. Well when I installed lion I went through and completely zeroed out the hard drive and installed Lion fresh and even now it is still doing it so I'm convinced its not the operating system. Everything hardware wise on my Mac is stock and I have Apple Care so I can take it in if I need to. I just figured they would start out by reinstalling the OS which I've done multiple times since it started and never helps and would waste my time. Has anyone else had this problem?