I think I've (with the help of an ADVFN Tech) solved the problem I was having. I THINK what made the difference was a double-entry of two Java components (newer & older) were 'active' in the Firefox 'Add-On' section. I disabled the two 'older' components. rebooted, etc. and last time I looked all the data was being displayed in the Trades window. Hope this helps someone along the way... Jim .