Trumpy the situation that brought this question up for me is an office where more fluoro lights were added ( batten holder type with a diffuser ) and one computer screen in the office started flickering very slightly but enough to be annoying.
Interestingly it was the oldest computer in the office and no other screen was affected.
There are speakers next to the screen but its not that kind of interference. And it still flickered when the speakers were removed. The screen is about 2m from the nearest light.
Thanks Aussie & Trumpy for your replies. I just had to ask someone else before I tell them to take the screen to an appropriate recycling depot.
