I'm having trouble implementing rotation and translation based on mouse commands using the GLX Basecode. Simply the event "ButtonRelease" is being ignored... I don't have previous experience on X programing so help would be appreciated. Let me reformulate what I need is: - A way to capture mouse movement. - Translate the mouse movement in rotation of the view matrix (if left button is pressed) - Translate the mouse movement in tranlation of the objects (if the right button is pressed). I did test the ArcBall Lesson(47). But it insists on segfaulting after the first run. The first run is fine, but as I exit and enter the program again it segfaults. I'm using gentoo-x64 on the latest X.org, gcc... Thanks in advance. PS: Sorry for the poor english.