I think my 20-month-old son may have executed some sort of random keyboard shortcut when I wasn't looking, because now whenever I click one object and then click another, it leaves the first one selected as well instead of switching to only the second one being selected. Also having problems with the layers panel, can't select things in there; unless they are already selected on the artboard, then if I click a layer in the layers panel it will act as if I shift-clicked it and leave a bunch of other layers near it selected. Not sure if this is a bug in this build of Flash Catalyst (126.96.36.1998641) or something that can be fixed just by using another keyboard shortcut... But would really appreciate some insight from someone who knows Thanks!
Ah, nevermind... My husband fixed it, apparently it was my hard drive that had issues.