[Zope] Batch processing

[Sture]

Hi!

I've just noticed something strange? here while trying to do some stuff
using batch processing. I followed the example in the dtml users guide 
(rev 1.6 s. 27) only changed the size of the batches to '1' rather than '5'.
Now - I tought that would let me step back and forth trough the list in steps 
of '1', and it does till theres 3 items left in the list - then all three is 
displayed at once (wich is not what I want). 

Is this a bug, or am I doing something stupid here, what?

Thanks

Sture Lygren