Is there a utility to display outlines of other resolutions on the screen? I have a 17" MacBook Pro and occasionally need to design software that's optimized for smaller resolutions. Some of them I can work with by setting my display's resolution to the target system's, but there are a few resolutions (1400x900, for example) that aren't supported on my machine.

Is there a utility that will display a rectangle on the screen that will show me what the resolution would be for smaller displays?

BTW, I'm using Mac OS X 10.8.4 (Mountain Lion).

Thanks,

Chuck
have a look at xscope.
Its not expensive and it has "Screens" and "Frames" function which both should to be doing what you need.