I've recently bought an OBDeleven, primarily so that I could activate Lane Assist. I've got TSR and so have the camera fitted.   I've found various instruction sets around which are all v.similar (but with minor differences). I've tried all of them and have succeeded in getting LA showing as an option on both the central display and the maxidot under driver assistance options. However, when i try to turn it on I get a 'Lane Assistance is not available' error.   Also, if I try