TIFF Problem with Office 2007

Hello,

We have a problem since our migration to Microsoft Office 2007.

This problem occurs when an user try to view a .tiff invoice (ArchiveLink Image).

Within Office 2003 --> No problem, this Image opened normally with tiff extension.

Within Office 2007 --> No .tiff extension, user are forced to save image and add an extension.

We have tested with saplong 640 and 710, office 2007 professional plus and Office 2007 Standard Edition --> same problem,

Someone have a solution please ?

Thanks,

Jérémy