just a thought
I had the same issue and it was caused ( as discovered by support) by too many incidences of flash on my page.
I rem..ed out one and it worked
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.