I can't seem to find the "Scrollable Frame" on my Overlay Creator panel and now I'm caught in the middle. Is there anything that I missed? I can only see the following:
Hyperlink
Slideshow
Image Sequence
Audio & Video
Panorama
Web Content
Pan & Zoom.
Bob L. is right. Without the dummy frame, the tab is just stuck there. Adding the dummy frame makes it work. Colin demonstrates the effect in this video, which was made for the more limited v18 tools: http://www.youtube.com/watch?v=OmMnH5h2chw
I'm not sure what's causing your scrollable content to get stuck, but I was experimenting with a separate dummy frame (not the "pin" frame) that would prevent the content from scrolling unless you dragged the tab. This approach worked great as long as I didn't release the tab. If I released the tab, the content got stuck. So I went back and removed or shrunk the dummy frames.
North America
Europe, Middle East and Africa
Asia Pacific