stems in the treble clef

[Annette]

I noticed that when I do the examples in the tutorial, the stems in the treble 
clef go up in your examples and yet when I do them, the stems go down.
The only time I can make them go up is when I did that example of deciding 
where to draw the beam.

Could you look into this?  

It even happened when I downloaded the examples from that long html page and 
used the exam