Can't Export to YouTube

I’m attempting to export a Fotomagico slideshow to YouTube. I get to step 3 of 5 where I input my YouTube Upload Information. At the bottom, I get a “Login Successful” notice, but I can’t proceed any further. The “Start” button is grayed out and nothing I do makes it clickable. Any suggestions?

Can you please provide a screenshot (feel free to grey out the username, or send me a direct message with a link to the image)?