Greg,
One sneaky workaround that can sometimes help is to click the
eyeglasses button to display the preview of the current page. After
you do that and close the preview, the WYSIWYG tab updates. If you
really need to see an image on the page, you can double-click the
image placeholder and it will come back after you close the Image
window.
I don't do this for very long, but sometimes I'm right in the
middle of a crucial paragraph and I don't want to forget what I was
saying. This gives me a chance to finish my thought before
restarting RH.
HTH,
Elisa