I believe this bug is due to the fact that the DPI on your system did not get set correctly. Your screenshots validate this (the fonts are quite big). This was a know bug that should be fixed now. You test by manually setting the following gconf key and restarting:
/desktop/gnome/font_rendering/dpi 96.0
New unr builds should have this gconf setting set by default.
I believe this bug is due to the fact that the DPI on your system did not get set correctly. Your screenshots validate this (the fonts are quite big). This was a know bug that should be fixed now. You test by manually setting the following gconf key and restarting: gnome/font_ rendering/ dpi 96.0
/desktop/
New unr builds should have this gconf setting set by default.