How do I open "portal: still alive" in a window?
I downloaded a demo of portal still alive and I don't know how to open it in window mode eg with the border as a pose to taking up the entire screen without a border. (I downloaded the 2.1GB file on steam) please help! PS... I was thinking that I might not be able to open it in a window because it's a demo version... But I'm not too sure that that's the case. (I am using windows 7 64 bit)