So after startup it uses 2 gb of Ram. Some people say that Snow Leopard releases this RAM when needed, this however is not true. If I run VMware and an App, the RAM is full and it starts using the disk. Why on earth does Snow Leopard drain 2 GB of RAM. It's ridiculous. ( VMware is limited to 1 gb and the App also uses 1 gb, so 2 gb in total ). I got 4 gb of memory btw. I wouldn't dare running Snow Leopard with only 1 GB of Ram, something Windows 7 does with no problems at all.