All of my users with excel 2007 are having the same issue. When the cursor to the formula bar the scroll wheel on their mouse no longer lets them scroll through the document. Is there a way to change this behavior? I would assume that excel is at that point attempting to scroll on the formula bar itself. Any suggestions would be a great help.

I don't think you can do anything about that. When the cursor is in the bar, the focus is there and only there. All you have to do is click outside of it to change the focus, though.

I think taybay is right. I just checked and it appears the reason is the Excel 2007 supports displaying/scrolling multiline formulas so the scroll on scrolling the forumla bar makes sense.

You must have the "allow editing directly in cells" box checked. Go to excel options/advanced. Once this is checked you will be able to enter a formula command and then scroll to the cell reference. This is a change from 2003 version. I prefer to not have the edit directly in cell box checked, but I would rather be able to scroll to the reference cell.