Rendering FBML (sometimes)

anyone knowing a reason why my application, only renders name.. profile.. but not the eventlink? (it's an iframe application)

<fb:name uid="123123" capitalize="true" /><br />
<fb:profile-pic u开发者_JAVA技巧id="123123" linked="true" /><br />
<fb:eventlink eid="321321321321" /><br />

thx sven