IE 7 kills HP director
A word of warning to anybody who uses HP all-in one printers or HP scanners. If you install Internet Explorer 7 than your HP director will no longer work. I discovered this after wasting a lot of time reinstalling the scanner. HP hasn't come up with a good fix yet, so in the meantime either uninstall or don't install IE 7 if you use HP director. Microsoft is making this difficult since they are feeding IE 7 through auto-updates.