I've come across several examples of youtube flash movies not playing in our application. They receive it is restricted from playback on certain sites. The movie plays fine from within a browser window. So, I assume the browser is sending request variables that youtube validates and our application (using f_in_box) does not send these variables resulting in failure. First question: is this assumption correct. Second question: can I get access to the request variables, e.g. user-agent, referer, etc. from f_in_box and spoof these values such that it appears to come from a browser. Thanks for the help.