are you using power gallery 1 or 2?
if you are using Power Gallery 1, have you applied the Browser Compatibility fix from the Known Issues section of the Power Gallery 1 download center page?
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.