Codecs
Was reminded again of how Codecs can be a pain at the worst time, was helping with our pre launch event and someone wanted to play a video on the screens with an old XP loaner, of course no codec for the video .. so for all of us with the same problem, Gspot is great util to tell you what Codec you need, download here
Good place to look for codecs, if you know which one you need is WMPlugins
