First I'd like to mention tjhat I download and install XCode and other things from the Developer site frequently enough, and I've never run into this problem. However, for two downloads in a row of the XCode 4.1 .xip from the Developer download site, more than one archiver utility tells me it's corrupted. Is it possible it actually is corrupted up on the server? Or is there a specific unarchiver I should be using? I've started to download it from the Apple store, but it's taking forever... the download wheel completed, but now it's just spinning, and besides that no progress indicator, so I don't know if it's stuck or what.