Question Tags: steam

Error installing team fortress 2 S3TC (steam)

Hi i realllllly need answer on this nothing not working i am too many install it and it not wirking pls help! you can see what's the problem here: http://imgur.com/y0Ghd there is write: Required OpenGL extension "GL_EXT_testure_compression_s3tc" is not supported. Please install S3TC texture support.
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