SQL date problem

I am relatively new to the SQLRPGLE arena, and am having a problem with a
date field.  In this SQL statement:

C/EXEC SQL                                                  
C+ Declare C1 cursor for                                    
C+ select Line#, Control, Text from DETAIL
C+ where Custno   = :Scn_Custno                             
C+   and SentDate = :Scn_Date
C/END-EXEC 

My problem is that in a particular example, it isn't going to find any
records in DETAIL.  When I run this SQL statement interactively, it just
returns a blank screen.  When I run it in RPG, I get the following message
(RNX0114):

Message . . . . :   The year portion of a Date or Timestamp value is not in

  the correct range.

Cause . . . . . :   A conversion was requested to a Date value, from a

  Timestamp or a Date value, and the year of the source Timestamp or Date is

  not in the allowable range of the target.

  -- The range for a 2-digit year is 1940-2039.

  -- The range for a 3-digit year is 1900-2899.

  -- The range for a 4-digit year is 0001-9999.


I'm assuming this has something to do with returning null values, but I'm
not sure how to fix it.
Carmen