Hello, the problem is unchanged in 1.7.5-1. Could this have something to do with ps2 vs. usb? I have another almost identical installation on an Intel-iMac at work that works perfectly. But here with my ps2-keyboard all the funktion-keys like alt gr, ctrl, pg down and up are broken. If it seems helpfull I will try to get my hands on a usb keyboard to verify that. Best regards Kai