Cant get rid of 5px border

Hi, 

I would like to create a Storyline animation really without any border around the main area. In a post How to create a chromeless player there is a description how to visually get rid of the border (by choosing 100% transparency) however when I put it into LMS there is still a white (transparent) 5px thick border... 

Is it possible to get rid of this border too? Just a thought: simple command (e.g. Pure Screen or No Border Style) would be appreciated...

Best, 

- David (Slovenia, EU)

PS: Otherwise the Storyline is really great tool and I am fascinated!