See this forum posting for a potential fix, if your using an ATI graphics card: http://forum.lazy8studios.com/index.php?PHPSESSID=h1d37r13a2d2ccnk5c5j6b2c94&topic=475.msg837#msg837 This is a fix for the bug where Cogs launches with the following output: Shader compile log for data/effects/TextureBumpCubemap.fsh: Fragment shader failed to compile with the following errors: ERROR: 0:41: error(#132) Syntax error: ‘smooth’ parse error ERROR: error(#273) 1 [...]