I noticed something odd with Photoshop CS5 the other day. I had an image I'd been working in. I'd up'd the vibrance and had nice colors showing while working on the PSD file.
I then saved the image as a .JPEG file. When I opened the .JPEG file in 3 other applications the colors were different than what was showing in photoshop. (Less contrast). When I sent the .JPEG to the lab, it printed with the lesser colors too.
I was just wondering if this is a common thing, and if there is something I've overlooked, or if I should be doing something else to my images before saving as JPG to keep the colors?