5.01 SE Runtime Question

Hi, We are currently developing under version 4.10 Informix on a SCO Unix 3.2.4 platform using 4GL RDS and SE with the intention to port and run the resulting app under Solaris 2.3 with SE 5.01 and 4GL Runtime 4.10. In our current setup (and as we do not presently use transaction logging etc.) anything other than an SQL Select statement will return and SQLCODE of 0 instead of 100 when the required rows cannot be found. Can anyone tell me whether or not this will still be the case in the new (SE 5.01) environment? Thanks in advance, Ian Timms.