Hi, I have a Macbook Pro i7, 750GB HD, 8GB ram. I'm using Parallels 8 and i have 2 VMs, one with Windows 7 and other one with Windows 8. the problem is: when i run Parallels, no matter which VM (Win7 or Win8), both Mac and VM gets incredibly slow, making it almost impossible to use. I have no idea what's going on, but im pretty sure something is. I'm using 4GB ram for the VM, and 2 (of 4) cores. Am i doing something wrong? Do you might know how to solve it? Thank you very much.