Alright, so I spent the last hour editing my new video and now I'm not sure why but when I render it as a WMV file to my desktop, and then it goes to 100% straight away and doesn't actually render anything because when I open the file, there is just a black screen with no video there. I'm rather confused. I'm using the default settings and it worked this morning on my notebook. My computer is a Windows 8.1 Intel i7 laptop and has not failed me before. What's happening? I'm new to Vegas and am really confused