Not sure whether I should have posted this in the OS X section instead... As of this afternoon my 5 month old MBP suddenly started acting weird. It happened while I was typing an email. All applications I've tried (Safari, Mail, Skype) are responding very slowly. I.e. it takes 30 seconds-2 minutes for them to open up. Then there's sometimes a lag of several seconds before I can scroll down a page. In Mail, when I'm hitting the "compose" button it takes about 15 seconds or so for an email to come up for editing. Opening a new tab in Safari takes 20-40 seconds. I tried resetting the ORAM and NVRAM, but to no avail. Activity monitor looks normal, i.e. no crazy processes occupying CPU or RAM. Thoughts/suggestions on other things I could try would be greatly appreciated.