I've had this happen before, and not sure how it was fixed, but I am unable to use the mouse wheel to scroll on the pages of all the spreadsheets I use currently that have VBA in them. If I open a brand new spreadsheet, it scrolls with the mouse wheel just fine. I did a quick (') of each VBA line in the file I'm working on, and it did not fix it. I don't have scroll lock on, no freeze panes. It's terribly annoying. Any suggestions on what else to look at? I think it happened when I copied a workbook page from one workbook to another. Thanks!