Hey again, I've excluded the option that pScreen might be NULL by adding if(pScreen != NULL) { the code }...it still crashes thought, with the same gdb output. The strange thing is that this crash happens something like 1 time out of 3, the other two times i can use the application for hours without any problems. I'm losing hair over this ;) Is this an issue that should be discussed with Keith Packard / or other people within the X.org team? The crash does occur when running the latest XWin on a 8-bit screen aswell.
Cheers, Sebastian Haby