Hoppa Samuel and all readers, on Sunday, July 8, 2007 at 7:54:17 PM means Samuel Thibault: >> # find / -name xlib > xlib is different from Xlib (the X has an upper case) All right. Sorry for confusion. The file exists in /usr/include/X11/. -- Viele Grüße Sebastian ICQ: 264706583 | MSM: sebo@blinzeln.de | Skype: sebo_de E-Mail: sebo@blinzeln.de | Web: www.blindzeln.de