My Macbook Pro seems to be extremely slow after i upgraded to OSX lion. The things that have been messing up is the Preview App, it takes very long to open up when I click on a Picture even if the app is already running. Also when I play flash videos even if the video is already loaded the video will lag while playing & lets say I open 3 tabs and each one has a video playing the computer will overhead and will reach about 4500 RMP, non-theless anything related to flash my mac will get very slow. I do understand that it requirers more power to run flash but not up the point where I will need to close down all the apps and have only the browser running. So Far... I have verified the disk permissions to see if i find any issues & there are none. When it comes to overheating I did a Reset on the SMC & nothing. Also I would like to mention that the I currently have installed Mac OS X 10.7 Golden Master. My Macbook Pro specs are 2.26 GHz intel core 2 duo 2 GB Ram 1067 MHz DDR3 I am a Noob here so please take it easy on me guys =/ thanks !