This may be a stupid question, but i've been using Photoshop on Windows for a couple of years and just now starting to use it on a Mac. Every time I click a tool in the toolbar that has a tool pop-up, the pop-up displays instantly, as though I had held down the tool icon or had right-clicked. This is really annoying the 99% of the time when i want to select the tool that's displayed in the tool palette and don't want the pop-up to appear. I've looked in the preferences and didn't see anything that covers this behavior. ???????