I think we're talking about two different memories here. My machine with 1 GB of RAM shows a VM of 1.05 GB used by TrueBlueEnv, which is Classic environment. What are you using to determine how much RAM is used by classic, other than the terminal TOP command? When I had only 256 MB RAM, TrueBlueEnv still used over 500MB of VM. There's no easy way to adjust that, except with changing actual RAM installed. again, where do you derive the 64MB figure?