Eviroment：xOS & Chrome 24 In safari it can't work too.
The question nagged me for days. I appreciate your feedback.
code is here
http://tsj1107.github.com/knight-ui/test.html The bad code is there
I see the SWF response requested by your page is only 1.4 KB, whereas the response for the official ZeroClipboard demo page is 1.9 KB. I'd recommend that you replace your SWF file with a fresh copy.