OpenGL lib really buggy?
I see the same problem using xmms visualization plugins; after 15-20 times i start plugins which uses OpenGL library, several plugins will run very very slow.
Notice that i don't start OpenGL programs simultaneously, but from xmms i
load a visualization plugin
unload the visualization plugin
start new visualization plugin
The problem occurr after 15-20 times i start a plugin using OpenGL and SDL libraries.
Another info: i'm using Mandrake 8.2 with an Athlon XP1800 and via chipset; i've seen an increment of performance instaling the newer XFree86-libs-4.2.0-25mdk instead of the version installed by Mandrake (4.2.0-10mdk): in this package the library /usr/X11R6/lib/libGL.so.1.2 is included, and with the new version opengl plugins are much faster!
Also i suppose that this library is responsable for the problems you have stated.
Please try this library!
I've just upgraded the XFree86-libs package, and till now i have not seen the problem above mentioned. BTW i have not tried enough.
Ok, that's all for now.... sry for my very poor english. Paolo