I purchased a Toshiba 24Z33 and have had it 10 days. Earlier this week it started making an occasional buzzing noise when a bright colour appearred on screen - now it does it practically all the time and it's getting louder. Watching the Heineken golf this morning it was awful the noise starting every time the sky was visible - which is a lot in golf! Certain logos set it off without fail - e.g. navy with white writing, green with white writing. It's a grating noise coming from the back and sounds like something spinning - could it be a fan? I live in Yorkshire and bought it via the Net from Digital Point (Electro Centre - Birmingham). They are an authorised Toshiba dealer but don't seem to want to know about it and have twice failed to return a call - they say any local authorised Toshiba dealer will sort it for me. I've tried one called Webb & Barker who said they won't look at it as they don't get paid enough by Toshiba to do repairs. I can understand their reluctance as I should have bought from them in the first place. Does anyone know what might be causing the fault? Any advice about how to resolve the problem?