After putting up with a faulty DIS screen for the last year I'd like to get it working properly again. unit has some dead lines of pixels [not too fussed about this] but more annoyingly display is only visible when car is cold - after driving for 20 minutes the screen fades to nothing! so - are the instruction CDs on how to fix from ebay any use? otherwise, what can be done? car is '98 TDi and non-VDO dials [I think] Thanks all!