Help.  I have a labor tracking database that I'm ready to roll out today and
I have one last error to correct.

I have a field for operators to enter their employee ID into.  This will be
done with a bar code reader that also sends CR/LF to move to the next field.  
I want to use a dlookup to make sure that the user exists in an "Associates"
table.  The expression that I have built into the validation rule for this
control is:

=DLookUp("[Employee_ID]","Associates","[Employee_ID] = " &
[Forms]![Time_Data_Input_Form]![Employee_ID] Is Not Null)

This works fine but it will only check validity of the first record in the
database (whatever that is).  It will NOT check any of the other records to
see if the employee ID entered is in the table.

What am I doing wrong?  I need it to check and see if the employee ID
entered is a valid user in the database.

Thanks,
Dave