I'd advise anyone with an Olympus camera that places Camedia panorama
markers on jpegs to think twice about using Windows Gallery to download them
to their computer. Windows Gallery when it imports them appears to overwrite
the markers that tell the Olympus Camedia/Master software that the pictures
are part of a panorama, with its own markers that specify things like the
folder you've downloaded them to. This renders the picture unable to be
stitched into a panorama. I can't believe MS have done this. Other similar
picture handling software such as Adobe Album never changes the actual file
(at least not without asking nicely first) but keeps changes as a copy.

On at least two other occasions I have even found that Windows Vista file
handling actually corrupts the jpg entirely, somehow rubbing out the jpeg
marker itself and making the file no longer recognisable as a jpg. Vista
file handling is a disgrace.