NavBar/Menu gone in browser preview if ActiveX/Java enabled

[ww1aero]

Hi, I'm building a site in Dreamweaver MX. Inserted a NavBar / Menu created in Webstyle 4.

Bar/Menu shows up in Dreamweaver. It also shows up initially in Dreamweavers Browser preview too, but if I click on pop-up window to allow Java/Active X controls (so I can test mouse rollover & drop down menus) the
Bar/Menu immediately disappears from sight (and site!).

I have all needed files saved within the Dreamweaver root folder, so everything’s in one place.

Any Ideas? Thanks..............Pete

I've included a partial screen shot, showing the bar in the Browser Preview, just before it would disappear if I clicked the YES "enable Active Content" button.