For strange behavior with CS, try a global preference reset: Hold Ctrl+Alt+Shift or Cmd+Opt+Shift on program launch and you'll get a dialog asking if you want to reset all of preferences, click yes. As soon as CS starts, you'll be back to all the normal defaults, and can re-set everything to your desired settings. I find that this almost always corrects strange CS behavior.
Not this time, Jack. I did it twice, just to make sure. I also have the latest video driver, but that is irrelevant, as it is the same driver I had before the hard drive crashed.
Oh, well...back to the drawing board!