It's actually closer to the polar opposite of red: cyan. I'd check out a basic color photography textbook from the library to get a handle on the basics of color photography. Then you will know how to fix/prevent this...and hopefully how to see that cyan is not red. IME, Ektar does tend to go cyan when scanned. But since the problem is completely digital in nature, and you are not actually printing these, I'd say that DPUG is the proper place for discussing it from this point.