I really need someone to tell me what I'm doing wrong. I bought an Epson 4490 and it works awesome...for B & W film. When it comes to color positives, forget it. They all come out a bit like this: The colors are close, but it's just not clear. And I know it's not the slide--they're 645 and I looked at 'em thru an 8x loupe. The slides are absolutely sharp. What gives? I'm at the end of my rope here! Someone give tell me that there's one variable I'm not checking. Oh, and BTW, upping resolution to 1200 doesn't help. Turning off unsharp mask doesn't, either.