ERROR(-6361):Dynamic SQL: type unknown: 28513.

Hello! I am trying to evaluate Informix dynamic 4GL and I am having a lot of problems. One of them was customizing the runner. Now the runtime recognize my C functions but some C functions lead to a memory fault- core dumped. The exactly the same functions included in the traditional fglgo of Informix-4GL work OK. Any reasonable explanation? perhaps the popquote, retquote and so on avoid the memory fault ? The next problem is when I run the fglschema <database> , I have the following error: afix3 <prog> p0 158$ fglschema apli ERROR(-6361):Dynamic SQL: type unknown: 28513. The explanation in the manual = null. I use the typical types ( dec, smallint, date, datetime, ... ) Any idea? These are the versions: <prog> p0 159$ fglrun -V INFORMIX Dynamic 4GL Runner Version 3.00.1g Built Aug 19 1999 16:39:01 (c) 1989-1998 Four J's Development Tools Language support library: GLS (Not determined) Database front end : INFORMIX-ESQL VERSION 7.11 <prog> p0 162$ $INFORMIXDIR/lib/sqlexecd -V INFORMIX-SQL Version 7.23.UC13 SCO OpenServer 5.0.5 Thanks -- Evelio Martínez Tel: +34 96 337-95-80 Fax: +34 96 337-81-18