[K12OSN] slow opengl

[Jim Christiansen]

I've installed k12ltsp in my home after running it at our school for weveral 
years now.  I've just found out that one of our favorite little games and 
flightgear won't run ...

Tuxkart and flightgear run on the server ok, but fail on a client.  Tuxkart 
opens but operates really really slowly and flightgear just freezes my 
client up-  K124.4.1 64bit.

Ideas??   Thanks,  Jim