Hi mates, i'm facing this irritating problem. My MBP 13inch intend to lag out, hang out freeze or what ever you call it when i'm trying to launch iphoto, itunes, web-browser or sometime it hang out of no where. i got a 4g ram which i do not understand why it become like this.. I'm trying to solve it by running the CD that provided inside the applecare, everything seems fine yet this problem doesn't seems to end it become worse right after i updated the latest patch. It would be really, really great if some one can address out the solution and help me out of this. i really need my mac for editing pictures yet it freeze out just because of web-browse or itunes how is it going to support Photoshop + lightroom? please help me..