Imagine me, another problem w/ Vegas! Capture vid & render, no mp4 save?

[damonj_3]

I've been recording video walkthroughs for YouTube. I've only worked w/ Vegas for about a week & not very much literal time during that week. The video's I captured and rendered all showed up w/ a mp4 version & video file version. Now, I'm not getting the mp4 format, only the video file. Why isn't it saving the rendered video in mp4 format? I never changed anything, and it did it on everyone up until 2 days ago when it began only displaying a saved "video file" version. How do I get it back into mp4, and why did it all of the sudden just decide to stop saving in mp4? Any feedback, suggestions, help, etc.. would be greatly appreciated!!! Thank you all very much!!!!
Damon

[aedipuss]

don't make more than one thread on similar subjects.

[damonj_3]

Thanks, I won't