It's not a problem affecting everyone, but yes some of us do have the problem and to a lesser extent than yourself, most of us seem to have limited pressure sensitivity in a narrow area covering the vertical scroll bar - the touchscreen does work, we just need to press harder in that particular area.

Your case is different as it sounds like a total failure of the touchscreen and I've not seen that problem reported elsewhere. I would suggest you get it repaired by Nokia - it's an in-warranty repair, so Nokia shouldn't charge you a penny to fix it.