Hi I have a snapscan 310, which has an optical resolution at 300dpi. Thus the xsane button only proposes resolution up to 300dpi. But I know that with a good interpolation, one can scan with this scanner up to 1200dpi. Does anybody know how interpolation works? Is it a job done by the scanner itself, or a soft post-prossessing that can be done with gimp? Any comment welcome ! Alex