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