Dan--what system version are you using? If you contol-click on an OSX (10.2.6) application, that allows you to look into all the files inside the application package, whick sounds like what's happening to you. Actually, sounds like you are using OS 8 or 9 or classic--you can go to the apple menu and select "About this Computer" for the details.
If you're using Mac OS 10.2.6, either your mouse /touchpad is thinking doubleclicks are contol-clicks, or something's wrong with your system.
(anybody--does Dan's problem sound like a "prebinding" problem?)
For OSX troubleshooting, I read
http://www.macattorney.com/tutorial.html. MAybe you can get more ideas there.
Sorry I couldn't help more--post back andkeep us posted on the problem.