   Question about GL 1.5 compatibility (on older hardware)
  Hey all,Just wondering about 1.5 extensions such as GL_ARB_Occlusion_Query, GL_ARB_vertex_buffer_object.How is the support on older hardware? (hardware accelerated support that is)Are they only hardware accelerated on Geforce3''s/8500''s and up?Thanks./jeff 
  yup. see http://www.delphi3d.net/hardware/extsupport.php?extension=GL_ARB_occlusion_query.   ;Cool, thanks for that helpfull link.