Just got my new Droid and its by far the best phone I've owned yet. I was downloading MP4 movies and installing a few Droid Market apps. For some reason after installing 4 - MP4 movies now the Droid tells me every time I try and do it again that the format is not supported? I can download and transfer MP4 files from my PC and they work fine, but can no longer do it from the internet and it was working fine for sometime. What gives? Any Ideas. The only thing I can think of is that the last app I installed on my phone was "Mobile Defense" from the Droid Market place. Not sure if it would cause a conflict or not? Thanks ahead of time.