Missing extensions

Im trying to run a game, and Im getting an error message that reads as follows:

! Missing OpenGL extension (EXT/SGIS)_texture_edge_clamp.
! Unable to set screen mode.
Error, a DecalManager (993f620) isn’t properly out of the bins!

Can anyone tell me where/how to obtain and install this extension? I cant seem to locate it on the opengl site.

Thanks!

You don’t download OpenGL extensions and install them, you download GPU drivers that support OpenGL extensions and install them. So bottom line, grab the latest video drivers for your graphics card from the vendor’s site and install them.

Thats what I thought. Thanks.