I found the solution. It seems that either my settings were lost or the new 'default' of "goto first post" overwrote it after the 'recent Forums Update'.
You can click on your profile-name on the upper right of any page, which will invoke a drop-down menu. Click on the Account Settings and you can change a number of things. including "Content View Behavior". I found mine set to "take me to the beginning." I clicked on the line above it, "Take me to contents I have not read" and now it has returned to my "normal behavior".