>Because of MAX()
>Aggregate functions require grouping. Would not make sense otherwise (ANSI).
>
>Also, returning ALLTRIM(trackrcd.t_s_num) may give you incomplete results as VFP will return a field length based on the length of the first item found. Try PADding it or in VFP9 using CAST().

Thank you for the great explaination.

< crying > but it worked in Vfp6 ;-)

I can probable take that alltrim off, but not the others, because the variables on thisform are already alltrimed, and if not kept the same, will not work.