I am having some serious performance issues with Sony Vegas 8.0b. It is to the point of unusability. The video is very slow and sound constantly crackles. I have never had these issues with Parallels 3.0, my settings are all the same, and I only got 4.0 cause I thought it would be faster. Wrong. Is there any way I can convert my 4.0 VM to a 3.0 one?