That is always the risk of upgrading too quickly. If what you have works stay with it. 16.0 is a perfect example. It was released yet there was a huge Security "hole" that caused it to be removed and the .1 version uploaded so quickly. I would suggest even when a software package says there is a new version that you postpone at least for a week or 2 (so others can get "the arrows in the back" from being too quick to upgrade). You might try Google Chrome as it is a lot faster than IE