that's what "page outs" means, right? here's the weird thing though, my iStat pie chart only shows about 3/4's of it or so being used. does anybody know if that just refers to app. usage of ram or what? and also i'm pretty sure my main recording app (Cubase 4) can access up to 3 gig (although there is some debate on this point, 3 gig seems to be the low guess), so why wouldn't that last bit be used? the only thing i can think of is that istat doesn't show system usage or something, but that doesn't seem to make much sense. anyone got any ideas?