I just purchased a new iMac, the one in my sig.(It only has 1GB of memory now the second stick is in the mail) It's got a gig of memory, but I've noticed it's a little sluggish more than my MBP. When I looked in the activity monitor the readings said I was using practicially all my memory. Here's the stats: 162MB Wired 523MB Active 322MB Inactive 14MB Free These do fluctuate, but roughly this is the reading. Programs open are: Safari(2 windows) Mail Dashboard Finder Activity Monitor Thats it. Of note in the activity monitor there are a bunch of items taking up memory, for example.."iTunes helper" is taking roughly 7MB and iTunes isn't even open. Can someone help me figure this out. Or is this just the way it is? I do have another gig on the way, but I didn't expect one gig to get me so little. Also can someone help explain the difference between Inactive and Free.