Comment 8 for bug 319644

Original bitmap too big in size to import.
Playing with a 4928x3264 photo does not show any issues, including the preview issue reported in comment 7 (vista 64 bit, Inkscape 0.48.4).
Hence issue could not be reproduced. Quite probably it is related to the size. If not, also it should be considered that it is a scan, whose background is quite variable and that a lower quality scan (less pixels) would also have done the trick.