So, I've observed something really weird with downloads in Mountain Lion. When Safari downloads a file, I see it show the little animation that the download is going... When the download is complete, if I click the item from the downloads window of Safari I get an error "could not find application". It's really annoying. If I open up my downloads folder and then open the file, it opens without an error. Anyone else? These problems are mounting and I'm starting to wonder if a clean install is the way to go here.