If you want todays date to show as the default value in a field on a form then set the Default value in the Table to
=Date()
If that doesn't work then you probably have a reference problem. While I don't argue using nicsin's suggestion there are a couple things you should know. First, the Format function returns the value as Text and not as a date. Second, if you don't fix the problem now, it will continue to plague you as you develop this Db and may plague anyone else trying to use it. Just my 2 cents worth.
Paul