5
Hmmm. I have tried this on multiple systems, locations, OS's, and again just now with a clean install, all settings default with ubuntu desktop. Same issue. I click site admin in the left menu block, new window to login. i log in, and then click admin panel in my custom block, another new window. This is the 3rd new window/tab that is now loaded just to get to my administration panel. I guess the common thread is that all of the menu blocks that are causing the popup are custom menu blocks that I created. I will try some of the default blocks to see if the problem exists there as well.