So after a few weeks of enjoying action, I am being pestered with annoyance! for some reason the software has decided to only let me record in MP4 even though I have the AVI option selected! please help me out!

So I've had action! for a few weeks now and love it. The main problem I face is that when i record with microphone I get a white noise in the back ground! But when i record audio or gameplay alone I dont get any white noise??? now I have a blue yeti so its not coming from my mic and when i record ga...