I am using Gutsy for work and Mathematica 6 works fine. I am running the dev release Hardy on a spare partition. Mathematica installs fine and the gui opens as it should (as long as libstdc 5 is installed), however, when typing into a mathematica notebook, nothing appears on the screen--its like the frontend cannot render fonts (unless you highlight what you just type, then it appears in white letters on dark).

Anyone else experience this or have a clue as to what the problem is?

I posted on the Hardy dev thread without success.