Thanks for the suggestion (karma to you
)!
I think you mean that the ENDs of the words are getting cut off, right? eg., instead of dog you get "do..".
Do you actually WANT your child to do the forwarding himself, or is it that it's hard to stop him from banging on the keyboard? If the latter, then what I would suggest is that you set the playback to "Auto-forward", and disable the keyboard by clicking "ESC key only", which means only the ESC key will work (to stop playback).
Please see the Little Reader How-To board for more information about how to auto-forward.
Please let me know if that helps!