this code is in sheet1; and the last line, before end sub,
produces an "application defined or object defined error".
can someone tell me why?

Sub x10()
Dim COUNTER1 As Integer
Dim COUNTER2 As Integer

COUNTER1 = [A1]
COUNTER2 = [B1]


Range(Cells(COUNTER1, 1), Cells(COUNTER1, 71)).Copy _
Worksheets("SHEET2").Range(Cells(COUNTER2, 1))

End Sub