Well, I installed Steam in PClos64 and all seemed well. I decided to download a free game, just to check things out, so I selected "Team Fortress" and it downloaded just fine. When I went to play the game, I got this error message:
"Required OpenGL extension "GL_EXT_texture_sRGB_decode" is not supported. Please update your OpenGL driver"
I cannot find any "OpenGL" updates available in Synaptic, so I'm stuck at this point. This occurred a few days ago, and I wanted to give Tex and the gang a chance to check things over before posting, but alas... no solution has appeared, thus my asking.