Regarding Internal Message

[Charlene_Glover at emainc.com]

Good afternoon,
        I am making changes to a book in Framemaker, whenever I try to
save the document I get the following error message: 

An internal error occurred while importing graphics in this document.
The file has been saved but has lost some image data. Please report
error to Adobe Technical Support.

I am unable to save the document at all, and do not know what else to
do, I will appreciate any suggestions anyone may have.

Thanks
Charlene