I have recently bought a HTC One S and am very pleased with it.

However one irritating feature is that whenever I don't have a signal for my network (Talkmobile/Vodafone), it keeps popping up a screen telling me what networks are available. This is particularly annoying when in the middle of doing something eg. Looking at photos or using an app. Is there a way to prevent it looking for other networks than my own?

I've had a look through the settings but couldn't see anything obvious.

Thanks in advance