I recently bought Lightroom 5; and now edit my raws initially in Lightroom. Once edited I export them as JPGs. Then I usually also open them as the JPGs in Photoshop CS5. Once opened there is noticeably more grain in each photo which is creating havoc with my processing. Much appreciated if anybody can help. I have updated Lightroom to 5.2, and have re-installed Photoshop CS5, with no sucess.