@ThePixie
In a new game, just under the menu bar, there is a toolbar that shows "Stop Game", "Walkthrough", etc. In a reloaded game, however, this toolbar is not there. Is that how it's supposed to be? The reason I ask is that this changes how some of my background images are displayed.

This is just in the editor I think. When you play a game you have been editing, you get the extra toolbar - with tools to support editing. If you open a game (even one you are still editing), there is no toolbar. So this is by design. When people play the published game there will be no toolbar, so design around that (but remember the screen size will vary a lot anyway).