I have been stymied by my Macs behavior when downloading since installing OS X. I would click on a download link and nothing would happen. If I used a Control-Click, I could select “Save this to disk” and download it that way. However, if the download button was an image, the only thing I could save with a Control-Click was the image, which meant I couldn’t download anything. I found the answer on Apple’s site. I needed to go into my System Preferences and set my Network settings to use passive FTP. It still behaves a little strangely, but it eventually downloads. Yes!