Ok, I made another test on a current 64-bit Arch Linux system. I had the same problems as on Ubuntu (comment #28).
Note that this was the same version as on Windows (comment #36).
Inkscape 0.48.4 r9939 * gtk2/x11 2.24.16-12.24.10-0ubuntu6 * fontconfig 2.10.2-1 * freetype 2.4.11-2 * glib2 2.34.3-1 * pango 1.32.5-1
Ok, I made another test on a current 64-bit Arch Linux system. I had the same problems as on Ubuntu (comment #28).
Note that this was the same version as on Windows (comment #36).
Inkscape 0.48.4 r9939 12.24.10- 0ubuntu6
* gtk2/x11 2.24.16-
* fontconfig 2.10.2-1
* freetype 2.4.11-2
* glib2 2.34.3-1
* pango 1.32.5-1