Spring RTS Engine

Xlib: extension "XFree86-DRI" missing on display ":0.0".
display: :0.0 screen: 0
OpenGL vendor string: Mesa project: http://www.mesa3d.org
OpenGL renderer string: Mesa GLX Indirect
OpenGL version string: 1.2 (1.5 Mesa 6.5.1)

No, I'm not using Beryl.

I'm probably running default drivers since I haven't changed anything with the graphics system.

name of display: :0.0 Xlib: extension "XFree86-DRI" missing on display ":0.0". display: :0 screen: 0 direct rendering: No server glx vendor string: SGI server glx version string: 1.2 server glx extensions: GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_i...

I have just downloaded Spring, and tryed to start it, but there was an error mesage GL_ARB_texture_compression not found.

I'm running Kubuntu with Ati Radeon X1150.