Hello everyone - seems there is still an issue here.
Try this... copy the folder you are going to zip out of your shared folders to the documents folder. Then zip the file there in the documents folder. If you need to test the file or that is have it tested before you up load it - send it to me via email. Just the zipped file not a dockzip. I believe you are having some kind of security issue with how windows or whatever security program you have is handling the zip file.
If this fails to work I have other ways to over come whatever may be the cause of it. I just need to see how or what is truely going on there.
My email is in my profile.