Hi, well I just recently got some ram, and i've noticed an improvement, but i'm looking at the usage of my ram in a Terminal, and it's really freaking me out! heres a snippet from what I found when i excecuted the Top command PhysMem: 112M wired, 400M active, 546M inactive, 1.03G used, 222M free Can someone explain what each of those things mean? I would greatly appreciate it. Also, why is there so much inactive physmem? why isnt it in the free section, and why is Virtual memory being used instead of physical memory? look how crazy the VSize is!! 29132 runner 14.1M 29131 SecurityAg 116M 29130 Installer 141M 29083 MagicMenuH 106M 29081 UniversalA 115M 29078 MicrosoftM 254M 29075 SystemUISe 127M 29072 aped 22.7M 29071 Dock 125M 29070 pbs 14.6M 29065 loginwindo 111M 29064 Window Man 200M+ thats crazy!!! why cant more of that be used by the inactive ram ??? makes no sense to me! and anyways what is virtual memory? is that data on my harddrive?