When Previewing Site, Asked To Save Twice

Hi, I've only just started using WebPlus today and love it. However, whenever I preview a site I've created and click the button to 'Save' a file, I'm asked and prompted a second time if I would like to 'Save' the file.

For example, I will get the 'Open' and 'Save' dialog box and choose 'Save' the first time. Then information is gathered and I'm prompted to 'Open' and 'Save' with another dialog box again a second time. The second time the file name option appears and you can save but I need it to work the first time.

I've created a graphic button and it is hyperlinked to a file on my hard disk for now. Not sure how to resolve this but any help would be appreciated... :)

JL