Is it the case where screen1 has AUTO REFRESH AT and screen2 has AUTO REFRESH AT both in exactly the same location, the only difference being that the AT in screen2 is hidden? If the text is at different locations then you can use the "At a specific location" radio button to distinguish the two. If the text is at the exact same location, but the AT is hidden you can try adding a new criterion for color. For the color criterion for screen2, select the beginning of the hidden field (where the AT is) and set the foreground and background colors to black (or whatever your background color is). Now, this screen will be recognized if the text in the field is black on black (hidden). If the text in the field is not black on black, for example green on black, then it won't be recognized by the criteria. You will need to add a color criterion to screen1 as well. Here the color criterion would be foreground=green and background=black (or whatever colors your host uses). Now, the two screen have unique screen recognition criteria. This seemed to work for me in my limited test. Give it a try.
Steve