We already fixed his problem. He fiddled with the glx libs and broke the script.
Anyway.. For others with non-working glx : The diaplay-settings script has a recovery function for this situations. Just call
@ Barthus: could you please put a fat warning in the first post that this will only work for the Asus EeePC 1015PN ? No need to try this on other Eee Models. It will fail and most probably leave your system in a broken state. (just to scare people enoughCode:sudo display-settings fix