The Drilldown button is not located in the correct cell in Excel 2007 or higher
This is an issue with Excel when you use the Zoom feature and the Zoom Percentage in not a multiple of 5.
Set the Zoom Percentage to a multiple of 5. You may not be able to use the Excel Zoom slider to accomplish this. When using the slider, it is possible to select a value that may be reported by Excel as 75%, but is actually 75.3%. To set the Zoom Percentage correctly, you will need to use View, Zoom from the Excel Ribbon to set the percent correctly.