@farmerman,
It is happening with only some browsers. They're trying to pin it down and fix it.
If you go back to the top of the forum page, you'll see in a green box a link to a feedback topic for future observations. We're trying to keep it all in one place for easier corralling of hamsters.
By the way, when you do give feedback there, let 'em know what browser and operating system you are using so we can find some commonality to the problems.