Problem recovering files - volume externally altered

I have received a message saying "the volume for a file has been externally altered so the opened file is no longer valid". Can anyone help?

Hi jbinks, and welcome to the forum.

Do either of these links relate in any way to your problem ...

http://support.microsoft.com/kb/875516

http://www-01.ibm.com/support/docview.wss?ratlid=cctocbody&rs=984&uid=swg21229572