iMac late 2009 - 3,06ghz - intel core 2 duo - 8gb ram - 10.9.5 i really upgraded to maveriks like 6 months ago, saw strange photoshop told me always this popup then 1 week ago i updated my mac ram 4gb more for better editing, you notice it's better but i tought it would be more, i can't really playback fluid i always noticed my mac was very hot more these times in summer today u used davinci resolve colour grading software and.. these appeared so i thought that would help, did it, restart and... didn't do much, still problems and didn't even playback... so, read online dust is problematic, do i need to open it and clean it? is it mavericks? (i think so, those popups didn't open before) but i tought mavericks was better with ram and cpu because it knew how to lower levels of usage and compress.... what do you guys that use heavy programs do? do you have mavericks? i have istats menue, now its at 50ºc, i bumped up the fans to max rpm to test (noisy...) but temp was same nearly okay my hdd is full and i need to clean, also i use it every day but i see the best a downgrade or clean or waht ?