I am using the current version, I just purchased it this week.
Yes, I experience the same problem with the example you forwarded me to.
For example, place about 10 lines of text with breaks in between so that the page scrolls down about 6 inches or so.
Then select the last word you have entered, and highlight it and go to change the folnt color. Or, highlight it and right click on it.
The editor will scroll upwards. Sometimes all the way to the top of the content, sometimes if the word youa re clicking on is visibly at the top of the view, it will scroll so that it is at the bottom of the view. This is hard to explain what I mean, but if you try it out you should see what I am seeing.
I am trying it out on this page as I enter text.
This line for testing purposes only...
And this line too.
Now, right click on this word -> Right Click me (with the scroll bar all the way at the bottom ---->) Doing so causes the control to scroll up to where the line that says "I am trying it out..." is now the bottom mst visable line in the editor. In other words, it scrolls all the way to the top. Also you can click on for example the color selector drop down menu and the same thing will happen. Note, it does not happen if you click on a static button, such as bold. It only happens with drop down menus and right clicking.