Dual-monitors

Yeah I got 2 questions to ask about the dual monitors, I have it all set up but whenever I play videos on my main screen, it makes my 2nd screen play the video maximized which looks bad anyway because my main is a wide screen, 2nd is reg. I don't want it to full screen on my 2nd monitor, and also, whenever I play a full screen game, I move to the other monitor and click on something like an internet browser it minimizes my game on the main screen, how do I get it to just open it on my 2nd screen and keep my game up on the main screen?