Dear Sci-Arters, Even though I have been using the scanner for some time, I am not completely satisfied with the results. I want to have more control over the scanning process. The scanner's manual is only about installing and setting it up, it doesn't explain how to use gamma settings, edge emphasis options, brightness, contrast, lightness.... I have been trying to adjust them to fit my needs, but the consequences are often unpredictable. I'm afraid this is a very basic subject matter for most of you, but I'd love to receive some advice. Thanks in advance, Silvia. Silvia Troyo Ilustradora cientifica - Diseno grafico INBio tel 244-06-90 fax 244-28-16 email [log in to unmask]