I would like to see a Reset Warnings Button. This would reset all warning that you have marked 'Do not show this warning again' This might sound trivial... but you might forget why things are not working correctly because you are not seeing any warnings... or someone else wants to use Parallels on your machine - heaven forbid someone uses my computer!... This will at least allow you to see all warnings again, and you can then hide them again once you figure out what you did wrong.