I tried to Install 0.31.5 on a Ubuntu 9.04 (I tried on a 32 & 64 bit).
The Install Screen didn't appear but an error appeared:
Exception EAccessViolation in module atbinz.exe at 023DCE05.
Access violation at adress 023DDE05. Write of address 7B82ECB9.
I tried on an 32 bit and on a 64 bit Ubuntu 9.04 System.
Maybe someone knows what that means or maybe somebody can tell me how to make this work.