Faulty Iiyama flat screen monitor

[adambell]

I have an Iiyama ProLite E1700S flat screen monitor - recently, the blue Contrast/Brightness dialogue box has started to appear (initially on/off, now permanently on) for no reason - have tried everything I can think of to "reset" the screen, but suspect it's gone faulty - any ideas? - worth repairing? - or just ditch it?