Hello, I have just installed Parallels for Windows and am setting up a Windows XP virtual machine (Windows 7 x64 host). I have noticed under the "Performance" tab in Parallels, it displays the CPU and Memory Usage. When the guest OS is loaded, it seems to use ~90-95% of the memory. The strange thing is, I have tried 256MB, 512MB, 1024MB and 2048MB and it always shows 90-95% memory usage. Is this normal? Could anyone shed some light on this? Thanks in advance.