PLEASE PLEASE HELP!!!! Some kind of image degradation upon saving! I've not posted here for a while, but have had a MAJOR issue crop up in the last week. As well as for digital painting, I use Corel Painter 12 for editing photos of ('traditional') paintings to get the colour / contrast / saturation right etc. Much to my HORROR, I have noticed that when I edit a photo and save over the top ( NOT AS a NEW FILE ), the next time I open it, it seems to have somehow degraded in quality - the contrast / colour / saturation are all diminished. This is only obvious upon re-opening the file, not as mentioned, at the point of saving. It also only occurs when editing  and saving as the same file - if I " save as " a new file name the image quality is retained. I have tried different types of editing such as cropping, and even painting over a photo - all suffer the same fate once saved and re-opened.  Likewise, file type seems to have no effect ( I have tried JPEGs and RIFFs ). I have also noticed the same problem if I open a photo, and then copy/paste it into a new image - the degradation of quality is immediately apparent here. PLEASE can somebody advise me on this, as I dare not use Painter for my work files at the moment - some images I've spent hours getting the right colour