on some websites it wont display pics or video, why is this and can I switch a setting?
there's a very high probability that the pic/video that you think you can't see is either flash or silverlight (most likely flash). flash it not currently supported.
That's where I was headed. Figured if the OP didn't know about Flash and Android, I'd work up to it slowly.
[On most flash things that don't show up, I've found that I can click the link and it takes me to a page telling me that Flash is coming to Android in Q1 2010. Thought the OP could figure that out alone if they tried clicking a link and that was the issue.]