Well, that seemed to fix it, but still does not explain why it worked for several days with no problems. It all ran well, then a whole series of problems cropped up, mostly with the data environment getting confused.
Thanks.
>I's most likely that problem lies in the getinarow() function code or it effect on UPDATE command. Try first to seprate the getinarow() function execution from UPDATE command.

FOR lnNum = 1 TO 50
>  lnRepeats = getinarow(lnNum)
>  UPDATE repeats SET repeated = lnRepeats where number = lnNum	
>ENDFOR

Notice that FOR loop is equivalent of yours DO WHILE construction.