Today I sat down and began editing a video in iMovie. It is about 16 minutes long. I tried to publish it (through every way possible) but each time I do it gives me the error "Not enough room in heap zone." What does this mean? The resolution is 720p and I have a mid-2011 MacBook Air-4/128Gb. Is there a way to fix this? I spent over 7 hours editing this video and I don't want to be restricted to a tiny window to watch it in. Time Machine is off, by the way.