After editing one of my photos in Photoshop and saving it, I opened it up and viewed it in Photo Gallery and it is not as sharp as it was in Photoshop.  I put the two photos side by side on my screen and there is definitely a difference. I emailed the photo from the Photo Gallery and the emailed version comes out sharp.  The photo is 13 mb.  I can't understand when viewing it in Photo Gallery it is not sharp when it is sharp when viewed in Photoshop and Picasa also.