Help!

I opened up my new Stencyl app, and went through the first crash course with no problems.  But, while I was doing the second crash course, I realised I had to sign in to my account to continue.  When I clicked sign in nothing happened and I kept on trying but to no avail.  I had even restarted my computer but still can't sign in.  I'm using a Macbook Pro running OSX Mountain Lion.  Please help me. Thanks!

Dude, you have to re-download Stencyl.

I did that like twice...does that mean I'm screwed?  Damn...I wanted to make a game soooo much...   Does anyone else have other solutions?  Please tell me if you know, thanks.

Is the button grayed out, or does it actually let you click it?

I don't really get what you mean, but the button looks normal to me.  It is just a yellow key with a 'Sign In' below, and I could click it.  But when I clicked it, there was a white rectangle flashing in the middle of the screen.  I have a screenshot of the home screen, but I can't seen to capture the white rectangle, because it only flashes once for less than 1 second.

I finally managed to get it, it just flashes, it dosen't just stay like that.  Please help me if you know anything about it.  Thanks!

Can anybody help me?...