A friend of mine has a problem that I can't figure out. When she starts her PC, or reboots it, an Excel workbook (Book1) opens and closes right away. There are no toolbars when it is open, and it closes automatically almost as soon as it opens. I have checked her startup folder, and there are no files in there. I have searched for excel.exe, but the only place it shows is in the Office folder, like it's supposed to. I checked Excel's options, but couldn't find anything that would cause it to open/close at PC startup. What else should I look for??