I literally over-reacted on some Ryzom settings only available via text files. Ryzom is running without hardware pointer, without hardware sound, openGL and Windowed now. So far I can not say if the problems are gone 100%, but it looks like it. Update about that tomorrow.
Update:
I did a lot of changes at once - the solution was not among it.
Update:
I did a lot of changes at once - the solution was not among it.