Can anyone help?

No idea what has happened but everytime I try and open a .jpg or .tif file (except these types of files that were actually created from xara) I am getting error messages, like

"no filters that were designed for this type of file have been found. The import will continue using the most compatible filer, although the image may not appear as intended" > JPEG file contains unsupported features"

Never used to have this problem and its driving me round the bend as I can't get of the images I need into xara.

Help!

Mags