Hi, to those of you who are interested: Background: The error was occurring between thisform.Release() and the next program line following a DO FORM. I could not find which table was giving the error until.... Solution: The primary form was displaying a listbox with rowsource of SELECT....INTO CURSOR curTEMP and the secondary form had a similar listbox using the SAME curTEMP. How did I find out? I used the command AUSED() and looked through the array contents. Rgds Petras