John,

Try adding explicit settings to .NULL. for your doubly linked object references:

>

>
>DEFINE CLASS cBizObj AS cObject
...
>  PROCEDURE ReleaseMember
>    THIS.oValidator.RELEASE()
     this.oValidator = .null.
>    DODEFAULT()
>  ENDPROC
>ENDDEFINE
>
>DEFINE CLASS cValidatorObj AS cObject
...
>  PROCEDURE ReleaseMember
     this.oBusiness = .null.
>    DODEFAULT()
>  ENDPROC
>ENDDEFINE

>