Two things that I seem to be experiencing that I don't think I have seen on either list. Not a big deal, but it does slow things down a little.
In HTML messages, my Microsoft Intellimouse Optical mouse (USB) will not scroll the message using the wheel. I have to grab the scroll bar or use the arrows. Aaack, how retro! The other thing that seems related is that the SPACEBAR will not scroll the HTML message either. Both of the above work with text messages.

