Disabling sound of pop-up messages

Update your 2008 version to v. 9 (just recently released) and when you publish to HTML (or SCORM/AICC), select "Use Web 2.0 Style Pop Ups". Not only does the Windows "ding" not happen anymore on pop ups, but the background grays out when the popup displays. Very cool. I've hated that sound for years.If you can't upgrade to v.9, you're out of luck as the popup is using a Windows function that can't be changed. However, I'm guessing the CEO will approve an upgrade. :)