Thanks, Andavari. I did as you said, tried to repair with the CD in. The problem is I have MS Office Professional 2003 installed on my comp and I have 2 CDs. One says MS Office 2000 Premium. The other says Win XP 2004.
I cant get back this file because the Win XP 2004 is too old and when I insert the disk and try to run it, it warns that the version of Windows on my comp is newer than the one on the CD and if I uninstall Windows and install the CD version I will lose files and settings.
Is there no way I can get OPA11.BAK from somewhere?