Wizard for model update reports change of an attribute for each table

Hello everyone.

While setting up my Oracle 10g Database every once in a while I update
my ERM in Visio 2007 by using the Wizard for model updating (German:
Assistent für Modellaktualisierung).
It searches for differences between the current model stored in visio
and a new scan of the database.
Then it reports the change of a single attribute for each table
although I didn't change a thing in most of the tables. So the list of
changes gets quite long and confusing.

Can someone tell how I can get rid of all these senseless entries to
just see the real changes?