Creaking headset The front end of my bike was creaking when the handlebars were rotated. I suspected an overtightened top cap. I loosened the stem bolts and loosened the top cap, checking for the creaking as it loosened. Eventually it became quiet. However, there is now considerable play in the headset. So it appears either the headset is loose and dangerous or overtightened and creaky. What is the solution for this problem please? Could it be that the bearings require greasing? Thanks for any help.

So, thanks for your input guys. I solved it by dismantling the headset and fork and re-greasing all the bearings and where they are seated after a thorough clean. the 'upper' bearing below the headset had a little rust and was bone dry. After the greasing it is now buttery smooth and silent.