I have been scanning 4 x 5 b/w negatives with my epson 3200 run by twain software, imported by Photoshop 7. The images are scanned at 360 dpi's. When i have the images imported in Photoshop, i can see the edges of the subject with jagged outlines almost as if they were pixellated. If i use the zoom tool the effect disappear, but if i magnify the image even more i can see some kind of gridlike patterns, throughout the image. The pattern is formed by lines of pixels (about 6 pixels wide) intersecting at 90 degrees with otherlines of pixels. I don't think these are Moire' because i am talking about Negatives scans. Does anybody know or suspects the culprit of this ? I am growing increasingly frustrated with the problems that softwares and computers keep entertaining me with: the all 2001 Space Odissey is coming back to me,