Linux/OpenGL: ONLY DomIII does not run! Why?

[Chazar]

Leif_- said:
Well, in that case, make a backup of /usr/lib/libGL.so.1.2 and overwrite the original with /usr/X11R6/lib/libGL.so.1.2

I did this as you wrote, just to be sure, but it produces exactly the same result as bending the symbolic links:

• Dom2 runs fast now
• Dom3 aborts with invalid pointer error

So I did alter the symbolic links correctly the first time.

Why do I get this invalid pointer error with Dom3 only? Dom2 at other programs runs fine!