scroll lock in Excel?

I started having a problem in Excel last night. As I used the arrow to click down through cells in a column, the screen wouldn't follow. I could type information into the cell, but if it was off-screen, I couldn't see it. Also, if I centered a cell on the screen and started typing into it, the screen would zoom to some other random location on the spreadsheet.

Is this a scroll lock problem? If so, how can I fix it? I've read the suggestions in the forums for shift+F14, but there's no F14 on my keyboard.

Help and Thanks!