Lithosphere (float texture missing)

Hi all,

I really want to try Lithosphere, but it only opens and then says this:



I typed in the terminal:
python2.6 run.py

Can anyone help me?
Specifications:
Linux Mint 64 11/12 (dont know exactly)
nVidia GT540m
i5 2410m
8GB RAM
enough HDD
Shouldnt this be capable of running it?

Thanks in advance,
tillonius3002

EDIT: ok, got one step further. It now uses the GPU. But now the window doesnt even open anymore. It says (bash):

[VGL] ERROR: in glXCreateWindow–
[VGL] 1304: Unexpected NULL condition