Hi! I recently wrote a terrain rendering application under Windows. Now I ported it to Linux (GLUT) which reduced the fps from >800 to approx. 5. I should be using the ATI proprietary driver - at least GLGetString() returns | Renderer: RADEON 9500 Pro Generic | Vendor: ATI Technologies Inc. | Version: 1.3.5395 (X4.3.0-8.18.8) Vertex arrays and multitexturing are the only "extraordinary" features I use. Any ideas?

lol, just solved it - the reason was a "damaged" tga file... It loaded properly but wouldn't render fast. I wonder why.