Thanks for the detailed response! I did poke around a bit and noticed none of my changes were having any impact. I never really messed with webgl, so didn't notice that was what was doing the rendering. Is webgl MAX_RENDERBUFFER_SIZE something I can set in about:config or elsewhere?

I got my start with BBSes, lots of fond memories. There was one BBS in my area, and they had it setup to RelayNet (similar to FidoNet, but smaller). I knew when they would connect up to exchange, so I would be sure to upload my mail packet and then dial back up 5 minutes after they did their exchange to see if I had any new messages. I could send and reply to messages across the country in a matter of days.