So I upgraded my MacBook Pro a while back ago and increased it to 8GB of Memory. When I use my Windows XP VM on parallels 5 it only reads 2.75GB of Memory. I did all the configuration and used the Main Memory slider to use at least 4GB of Memory, but it never uses it. It is always stuck on 2.75 GB or lower. Help please? I want to be able to use my full 8GB or at least 4GB.