You were right - clearing the cache totally changed the situation.  In a large (20+ pages) Word-based doc with image placeholders, lots of ordered and unordered lists, along with tables and font changes, there still is timing that kicks in and performs a background operation, but it's brief and, IMO, acceptable under the circumstances.

 

This can occur during typing or during scrolling. When typing and the background op kicks in (a few seconds only), my typing goes into a cache. When the background op is finished, my typing neatly displays and I can continue.

 

5 and 10 page docs don't exhibit any significant bg operations.

 

I think you've done a great job for us here, Adam. IE is perfect and FF is almost perfect.

 

I'll work with it over the weekend and report back with any problems.

 

Thanks, Adam, for looking into this serious problem and finding a solution for all of us. It will sure make our users happy.

 

FredD