Photoshop issue

Hello. I have a Photoshop CS4 running on Mac OSX 10.6.3. When I start it, it runs with a transparent background, so I see desktop, all opened windows, e.t.c. How can I turn it to grey or any other solid one like on Windows?

P.S: I haven't found a solution in google so I'm asking here.

Thanks!

So like old PS releases such as CS2?

Window -> Application Frame, while in CS4

Kind of confused but isn't that how Photoshop is on a Mac? The only way that I know of not seeing the background is to toggle your view mode by pressing "F" on the keyboard.

s2odin, thanks, that helped.