In addition, the fixes that were posted months ago in this thread cured, for the most part, all the issues I had. If folks will read back a number of posts, the fixes are posted.
I don't think it's necessarily all FB. I'm using both FF and Safari on a mac and it doesn't happen to much when using Safari and when it does it only jumps about one post instead of the 6-7 posts that happens when I am using FF. So???????