I too am having problems rendering with Vegas Movie Studio 11. My processor maxes out and over heats, causing my computer to shut down. I have an Intel core i5 M 430 @ 2.27 GHz 2.27GHz, Windows 7 on an HP Pavilion lap top. I’m shooting in MOV. If I try to render in a low res MOV setting I can get away with rendering about 30 min. of video. Rendering in any other format is out of the question.