[Wine] Wine Desktop

[EdwinSineath]

When I start a Windows program, a blue desktop pops open, then the program starts.  But on some programs, (usually games) the game window is larger than the desktop, so that there are areas that need to be clicked in order for the game to run, but you can't get to them because of the size of the desktop.  Is there a way to go fullscreen?  I can re-size the desktop, but the game window stays the same size.

Thanks!