Date handling between Delphi 1.0 and Access 2.0

I am just beginning to learn to use Delphi with Access 2.0.  I use a
DBGRID to display the data and DBNavigator to manipulate the records.
Everytime I tried to update or create a new record to this particular
table with a date/time field, I get this error:
"[Microsoft][ODBC Access Driver]Jet error 3030 returned"
Can anyone explain what the error is and how I can overcome it?
Thanks!