Registration is 'linked' to that picture.
Either
1. Delete the picture.
2. Reload the registration. It won't 'find' the picture so link will be broken.
3. Re-save the registration now (without link).
4. Restore the picture for future use

OR

1. Create a new Registration with similar features as the old but DO NOT LINK to any file.

Thanks,
_________________________
[KETRON - USA]
Design Engineer & Product Specialist.
www.KetronAmerica.com