Hi, thanks for your resopnse...
I tried to type my SQL SENTENCE in "RECORD SOURCE"

SELECT Nro_Vale, Fecha, Ccosto, NIT, TLiq_Con, TApropia, TCargObr, Ret_Cont, Usuario FROM SINFO!evale WHERE !CASA INTO CURSOR ENVIO

... and finally it works...I was using a GRID subclass and the error was other.

But I neeed also in that SELECT a Logical fild ´lSelect´ that isn´t in the EVALE Table to put a chekbox in a grid and allow a user to mark or unmark a record. I readed a message called ´Grid´ by Steven Dike that ask for something like that. Could you please tell me how to make my SQL SENTENCE with that field?
Thanks