I uploaded 4 videos all at once using the flash uploader, two were rather large. It seems that you can only start the first one no matter what you click. If you refresh the page with a Ctrl F5, you can start one of the others but as soon as you try and switch to another one, it defaults back to the first one in the list.
I'm not much on bug reporting but it seems to be some sort of cache issue? You can see it in my profile (skyforum). I am using XP and the latest version of Firefox. I have not tried it in IE yet (hate opening ie so it might be a few weeks, lol)