>However, the 'Clean Up Database' option is greyed out on the menu. I have opened the database exclusive (OPEN DATABASE DATA/CAT1 EXCLUSIVE).
>
>I tried to VALIDATE DATABASE in command window, and got:
>
>Need EXCLUSIVE writeable access to rebuild structural index.
>Database container is valid.
>
>Adding VALIDATE to the end of the OPEN DATABASE command gives me no visual feedback.
>
>Thank you,

I've seen this glitch before. I think I just closed and opened the database to enable that menu option.