Pivot Head Wobblyness Options

[Tomoe]

Hello all

For a long time, ever since I dropped it once, my zaurus' screen mechanism was a bit wobbly.
Nothing that would prevent me from using it, but it finally got on my nerves and I decided to fix
it now. Could anyone give me some advice/pointers?
BTW, the wobblyness is not in the screen lifting but the screen rotating part, so the screen panel moves
a few mm to the sides when in portrait mode (only if I push it with my finger, not on its own).

Thanks!