I was looking to utilize my old monitor to work with imac computer together. I bought this imac computer just 2 weeks ago and itís brand new. I also purchased mini DVI to VGA adapter to work on multiple monitor because as I told wanted to utilize my old monitor. So I connect my old CRT with imac computer and it was working well with normal computer works. But not it was the time to test it with WC3 games. When I played game it was working on Imac screen but old CRT was black. I do not know where is the problem? Why it is making problem only with games? Since other works going well with both screens, game should also perform well. Do you people have done this type of settings ever? Please explain me where is the problem? Should I need to install additional drivers to solve this problem? Please help me.