I got my UK N97 yesterday and after sorting it the multitude of other setting i turned to the Compass/GPS. I expected to have to sit there waving the phone around like a complete muppet for ages but to my surprise no. Just as i was about to calibrate the compass there was a knock at the door, so i put my phone down, answered the door then came back. Within that short space of time the compass sorted itself and had the green indicator without me having to move it. Has been fine ever since. Very bizarre.