I have been having problems with my MacBook Pro going really slow and having sometimes only 15 mb of ram available (I have 2gb total) I didn't have much free hard drive space,so I deleted a lot of stuff but that didn't help. Someone suggested that my hard drive might be dying so I bought a new one (7200 rpm). That didn't help. My last resort is going to be upgrade to 4g (money is tight at the moment so I will have to wait a little while for that.) However, I think 2 gb should be enough for most stuff. What would you suggest might be the culprit?