I would say since installing lion I have had trouble with slow start ups and slow shut downs, I guess this is a known problem but I have also had trouble with the computer not shutting down and just getting stuck on the white screen and having to do a forced shut down ( I posted about that once before). But additionally, I'm having trouble with apps loading and the spinning wheel popping up. Also, I tried to load a word document yesterday, and word kept locking up and never did load the document. Though, if I just bring up a blank word doc word works fine. Overall, I'm very frustrated I love my Mac but now it feels cheap like a pc. I'm open to suggestions. If you need more info please let me know.