I think I figured out the cause. I guess there is a bug in Excel 2003 and older where the InputBox method returns an error if there are any cells in the sheet which contain conditional formatting.

Question is... Is there a workaround for this?

Im trying to run a very simple macro to allow a user to select a range of rows for deletion. It works fine as long as the commandbutton is on the same screen as the selected cells. If the user selects a range of cells where the commandbutton scrolls off the screen... it doesn't work. Any thoughts?

Private Sub CommandButton1_ Click()
Dim DeleteRange As Range
On Error Resume Next

Set DeleteRange = Application.Inp utBox(Prompt:=" Select...