Oops,.. ;D

I didn't see that, becoude my background is white.. 

Fixed.

I'm pretty sure it's because the background was white when he made it transparent, so that color disappeared as well. So the black pixel you're seeing is actually the PJ background.

Either you have to be more careful, or this guy needs a cleansing gel  

Is the black pixel on the nose intentional?

Thanks. 

There's a short guide for making things transparent in the forums here- link :)

 I dont have any program, to transparent animations.. :S

Why don't you make a transparent background?