Currently using windows xp on vmware fusion 3 on a 13" aluminium macbook, with only 2gb ram. As you can imagine thats not enough and its eating up my ram. Till i upgrade 2 4GB is it ok to decrease the ram setting on the virtual machine? Its currently set at 512 MB, and was thinking of decreasing to 256MB. Is that going to adversely affect the VMs performance? I dont use the VM for hardcore gaming or anything, just for simple things like poker clients.