Mark me down as another joystick victim. Mine wouldnt go down, which was hell when using T9 in texts or negotiating the menus. It's currently with O2 for repair, partly due to the joystick but mainly due to the earpiece speaker crackling.
I also have 2 friends with the K750i and both of them have the same problem too, as does another friend with the W800i.
Funnily enough, it's the same problem that caused me to sell my T68i many
years ago.
You'd think after so many returns across so many models that SE would redesign the joystick. It's a shame becuase small annoyances like this can really ruin a good phone.
I guess phones arent meant to last long these days anyway