Thanks Boss,I didn't complain about this feature missing in the new format but I am sure happy you saw fit to bring it back! HRP
It's better now as the window doesn't go away before you are done reading like before, it stays now untill you move the cursor...glad it's back.
Open up any forum page and pick a thread title that looks interesting. Then just hover your cursor over the thread title. In a second or two a small pop-up window should open and give you a preview of the contents of the first post in that thread. It's an easy way to help decide if you want to open the thread and read further.