Recently I acquired Photoshop CS and used the RAW plugin to open some images. I noticed right off that there was a HUGE difference in the colors on some shots between the images as opened in the Canon File Viewer utility versus Photoshop CS. The same image file, opened side by side in the two tools shows a marked difference in color saturation, so much so that they do not really appear to be the same exposure. Although I am quite savvy and comfortable with computers, I am new to Photoshop, and have only been using the Canon File Viewer since receiving it with my DRebel in December, so it is entirely possible this is a user error somehow. But with the Cannon ZoomBrowser software, I select the raw imange, then "Process Raw Images". Simply using File/Open in Photoshop on the same file nets a very different looking image. Doing simple Saves to a high quality JPEG nets very differnt results. I will try to post samples of the two in replies here.