I've tried and tried, but can't figure this one out.

I take photos with my Nikon D50. I copy them to a hard drive. I pull them up in Adobe Photoshop. I save them as whatever (jpg). When I try to pull the photo up again, it tells me that the photo is 'locked' and can't be accessed. Mind you - I can still pull up the original. These locked photos can't even be deleted! No previews in Explorer, and I can't change any properties through Explorer (the photo is 'locked' - remember? )

Also - I tried sending an original as an attachment to an email and it can't be viewed. And I can't insert them into an email (originals) either.

I've checked the camera settings, and they weren't locked (I don't think so anyway - I've since deleted them from the card!)

Any ideas?