I tried with the Inkscape 0.48.4 r9943 custom (0.48.4 RC5) package you posted on g.c.g.i.devel and the issue is also present there.
I tried with the Inkscape 0.48.4 r9943 custom (0.48.4 RC5) package you posted on g.c.g.i.devel and the issue is also present there.