GnuCash: Register Entry Autofill

[Charles Sliger]

Is there any way to turn off the autofill function when ebtering
transactions in a register?
GnuCash frequently insists on creating a split transaction that I have
to deconstruct in order to enter a simple transaction.
I've looked in the Preferences but can't find anything that turns this
off.
-- 
-chaz
Charles Sliger
"No matter where you go... There you are... Buckaroo Banzai"