Wirelessly posted (Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8J2) Hey good forum folk, i need some help. I just shut down my imac and for some reason it took longer than usual (normally its within a few seconds) but this time it took about 20 seconds, then as the screen shut off the imac made a 'pop' sound. This has never happened before, i turned it back on and it booted fine and took me to the login screen. I hope this isnt to serious, this is a new 2011 27" quad i5 3.1ghz 12gb 9670m 1gb machine 1tb hard drive osx lion spec machine??? Thanks in advance.