I need to use Mac OS X's screen sharing app a lot to access a remote system (also using Mac OS X). I'm new to Macs and I keep having the following problem:
If I leave my mouse cursor within roughly a fifth of the top of the screen, OS X thinks I want to exit fullscreen mode and shows the OS X menu bar.
This is very annoying as the only options I can find will allow me to choose having the remote display get resized (which is terrible if I'm hovering over a button which was just about to click) or part of my screen gets covered by the menu bar.
How can I stop the OS from trying to help me until I push the cursor into the farthest pixel in the upper right hand corner (or something like that) so that I can use the machine as a thin-client and not deal with the local system? Is there a way I could create a separate user account that only displays that application as if there's no Finder?
Before suggesting another client: I've found that you really need to use the default one in OS X or it is a poor experience.