I've had my swift 5 for a couple of years and love it. However, the past few days the screen started to flicker intermittently with a steady pulse which I could initially remedy by shifting the angle of the screen a little one way or the other. However, it is now pretty much constant and I can only rarely find the "sweet spot" where the angle of the screen stops the pulsing/flickering. Would a simple screen replacement be the cure? I don't want to fork out for a new screen if it turns out it is a software issue, but the fact I could solve it before with a move of the screen suggests something more mechanical to me - ie. a weak connection/cable somewhere?