Comment 2 for bug 843856

Could you be more specific about the differences you see when exporting to bitmap?

I tested exporting to bitmap (90dpi, default) with Inkscape 0.48.1, 0.48.2 and 0.48+devel r10624 on Mac OS X 10.5.8 (i386) and can't detect a noticeable difference at first sight. There are probably too many details in the drawing you are familiar with, but may not be obvious for someone not having manually edited the file (or used a third-party application for editing - since Inkscape does not create a viewBox attribute by itself).