So I run vista 64, and for some reason my ventrilo and zune market place always freeze the whole comp for 2 min or so when i start them up, or close them. I don't know if its the sound or what
it may be possible that there is a conflict between ventrilo and zune, or it may be that there has been a bad install of one of the software's .. have you tried uninstalling and the reinstalling both products (not at the same time obviously)
does it freeze when you run only one of the programs at a time???