Basically, you just need more RAM. Virtual mem is simply your harddrive being used as RAM. Windows should automatically adjust it, but sometimes if you're system doesn't have much RAM, you will have this problem. You should get a pretty good speed increase if you invest in some more system RAM, or you could simply go to System > Advanced > Performace > Advanced > and change your virtual memory to some higher setting. Just remember the harddrive is the slowest hardware in your computer.