ET Linux - no hardware acceleration

When starting Enemy Territory 2.56 Linux:

You are using software Mesa (no hardware acceleration)!
Driver DLL used:

video card: nVidia GeForce 4 MX 440
kernel: 2.4.26

Could this be a driver problem, or maybe just a configuration problem?

Maybe it is a driver configuration problem :smiley:
Try downloading and installing the linux video drivers from the nvidia website. They have quite detailed instructions.