In Excel 2003 I have the following code:

For i = 2 1000 Step 2
Range(i + 1 & ":" & i + 1).Borders(xlEdgeBottom).LineStyle =
xlDouble
Next i

This code fails with the error "Unable to set the LineStyle property of the
border class" for i = 30 and i=128. It works for all the other lines.

Can anyone help me figure out what is going on?

Thanks