(This might be a duplicate but it seems my previous message didn't arrive) I talked with Nathan W a long long time ago about what effect ACPI might have if enabled on BeOS R5. Today I actually took the time to write a driver that loads the module and see what happens. The result: It KDL's on boot. As half my keyboard wasn't working I could't find out much but I managed to exit KDL and continue booting. It boots, and I'm actually typing this with such a boot. I'm not sure due to the KDL that the module did everything it was supposed to. My curiosity was only to see if it would do anything interesting to my laptop, it did no such thing. After finding this out I don't planning to do very much else with ACPI on R5. If anyone wants the code (that's not part of Haiku) it can be found here: http://hem.bredband.net/b143824/ACPI-driver.zip AND IS ONLY INTENDED FOR EXPERIENCED DEVELOPERS. Ok, back to the reqular programming... /Fredrik Holmqvist, tqh