I have a 2.0 GHz Intel Core Duo processor 2 GB RAM macbook that is just over a year old. lately, and especially since installing leopard yesterday, it has been running very slow (as in like ~150-600MB of RAM free). It usually runs slow when i have more than a couple of windows or applications open (ex: adobe bridge, photoshop, email, word, ichat, itunes, safari). I havent added much software to the computer since getting it, but i have added LOTS of pictures to the Hardrive which is 52.24 GB used, 22.97 GB free as of now. i have always thought that the speed of the computer was based on the RAM and processor, but that wouldnt explain why it has gradually decreased in speed since buying it new. Is the slowness due to a lack of RAM, slow processor, or full hardrive and what should i do to try and fix this problem seeing as how i dont think i can upgrade the RAM or processor??... PLEASE HELP!! I am very fond of Macs, but didnt expect them to start running so slow all of a sudden. Any help will do. Thank you.