Surface volume rocker issue

Has anyone else had problems whereby you press the volume rocker lightly once and it doesn't recognise that you've let go of the button, thereby either maxing the volume to 100 or reducing it to 0. is this a feature or a fault? Sorry that's a crap explanation but hope you get the jist. Hope I don't piss 'the tribe' (which reminds me is anyone else reminded of that awful show from New Zealand, late 90s/early 00s) off with forum topic solely for this.