I am using Movie Studio 17.0 Platinum. I have made many mp4 videos but today when I rendered my video it came out half size. It has never done this before and I didn't do anything different. I tried deleting the project and redoing it. I closed everything and rebooted my machine and started from scratch again, but nothing worked. I can't understand why it's not rendering full screen. The properties menu doesn't give any clue. Aspect ratio and all other attributes look the same as my other videos. Any ideas?