I got this cam near the end of the year, had it out for the first time for three weeks. I had it set on video/audio, works just fine, but there is a very loud hummming sound on the video, is there any updates to download to take away this sound?

Send Moultrie an email, explaining what your camera is doing. They maybe able to help. Depending how busy, they likely with answer with in a week. I just recently got an up grade for my 4.3 Moultrie picture viewer to view video on Hi Capacity cards (8GB SD). Good luck.