IPhone application on a dual screen mode of the computer.

Hi friends,
I cannot see anything on the iPhone application, on a dual screen mode of the computer. Well, this is the first time that I' tried if this would work on a dual screen. I'm not really sure, if this is going to work. It's working, if the dual mode is off.
Yes, I just want to maximize my 2 monitors. I also need a space on the screen, to see the job I am working on while opening applications on iPhone.
Anyone knows about this? Please let me know. Any suggestions or tips would be greatly appreciated.
Thanks.
