Ok, I've never used 64 bit before so I'm taking the plunge.  Will all my past Vegas 9 projects and files still work when I upgrade to Win7 64 bit and upgrade to the 64 bit version of Vegas?  Sorry for the stupid question, but I just want to make sure.  I assume going to 64 bit will just change the way my mobo and processor handle everything.  And yes I have a compatible cpu/mobo.