ACE report problem. (sacego gives error 9063)

Hi, I have inherited an informix applic. which has ace reports. One of the report is giving me error 9063. The report has a define section like this: DEFINE PARAM[1] cr_parm char(11) VARIABLE sigma_debug integer VARIABLE marker1a char(40) VARIABLE marker1b char(40) VARIABLE marker2 char(40) VARIABLE i integer FUNCTION sizeofcol END I compile it as: saceprep <report.ace> which is successful. Then when I run it as: sacego <report> <my-arg> It says: The user function "sizeofcol", defined by the user in the DEFINE statement of ACE, could not be found in the C function definition table "userfuncs" in the user's C static data area. See error number -9063. I don't have any manual that describes how to declare a userfuncs area for sizeofcol. Thie ACE report uses 'sizeofcol' several times. Please help. I don't know ACE. If possible, please reply directly. Thanks much. AH