veeyeskay has a nice catch in his latest post. Most of you maintain history in all of your modules, well in GP 2010 you need to check the box to maintain history for the new budget transactions as well. Get the full scoop at Maintaining Budget Transaction History in GP 2010.
Maintaining Budget Transaction History in GP 2010
General Ledger & FinancialsGP 2010
Archived post from 2010. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.