how i can enter date of birth in access record through ADO in VC++

hello.
i have made a access table inwhich field is Date of data type "Date/Time" and input mask "99/99/00;0"
i want to access that record through ADO.
A generic class with Variable

DATE m_dtBirthdate;
ULONG lBirthdateStatus;

BEGIN_ADO_BINDING(CCustomRs)

ADO_FIXED_LENGTH_ENTRY(3,adDate,m_dtBirthdate,lBir thdateStatus,TRUE)

END_ADO_BINDING()

in VIEW class

if (((DATE)m_oledtBirthdate) != pRs->m_dtBirthdate)
pRs->m_dtBirthdate = (DATE)m_oledtBirthdate;

here m_oledtBirthdate is form variable for edit box.

Problem is::
when i add new record then bydefault/changed value (1/1/1970 5:00:00 AM)can not enter into the table field.

OnAdd function::when i need to add new record. i have declare

COleDateTime dtBlank;
m_rsRecSet.m_dtBirthdate = (DATE)dtBlank;

Can any help me.
Advance Thanks.