I have been using Vegas for about 10 years and have had very little problems with it. Today it will not render audio at all. I tried inserting a new audio track, rendering in different formats, rendering just audio no video, rendering a completely different session that previously worked fine. I cannot get it to render audio. There is no audio playback when I play it on Windows media or VLC.

I am using Vegas Pro 13 build 545 64 bit. I even uninstalled Vegas and reinstalled still nothing. Computer is Windows 7 64bit i7 with 32 gigs ram.