OK it started again I really have no idea why its doing this but It is getting real frustrating. If I go to edit some clips together if the video dose not have music or sound it will render the video but If the clips have sound or music its it only wants to render it in wav format so I get no video what so ever just the sounds. I am getting very frustrated with this it was working fine a few days ago the last time I used it because I got it wo render a video and everything was great.Now its doing it all over again. I only got it to work last time by going back to a restore point but I don;t think that is a option this time because I have just had a pc tune up and put in a new graphics card and power supply so a restore point would just undo all the tune up that It got yesterday not to mention all the stuff I had to do with the graphics stuff.