I've been searching the forums but can't find anything about this. Can I watch videos from justin.tv or similar webpages in my N810? I've tried, and I get sound but no video. For what I've read in this site, it seems as if people can watch them on their ITs. Maybe I'm missing some component?

Thanks in advance

Edit: I'm using MicroB, gonna try Fennec just in case.
Edit2: Exact same behavior with Fennec: got sound, but no image.