I'm having trouble with my camera. I've checked and double checked my settings. Gain is fine, shutter speed fine, everything is set like I normally use without any troubles. Two weeks ago I posted a forum because my stuff was grainy. Now there are pulsating lines coming in and out of the video. No pattern. Sometimes the pulse is there longer and other times it goes away for a while. It's a static interview. What am I missing? Is there a way to fix this in post (Adobe, Final Cut?)?