the focus tool has 4 stages; Off, Auto, Manual and Point. if you can see the cross-hairs, you're in stage Point where you get to specify where the focus point is.
if you want auto focus, click the tool two more times.
from the SF Ai v5.5 manual, the stages are identified as:
Off - button is faded
Auto - there is an A below the lens icon
Manual - there is neither an A or a P below the lens icon
Point - there is a P below the lens icon
this information is
not included in the pdf manuals that now accompany SF v6.1, but the complete manuals are available from
Documentation. you might want to download and peruse through them to learn more about SF.
that said, I have read the complete SF Ai v5.5 manual (soft cover printed manual that accompanied the original SF Ai Nikon disc), have used SF Ai extensively for the last 18 months and I'm
still learning how to use and master SF's various features. it's a very powerful software.
regards
Gregory