blutooth "lost"?

[Guest santoo]

hi guys,

my b7610 seems to have "lost" bluetooth: activating it via windows-settings or connection manager doesn't work and the item has even gone missing from my spb ms (the item indicating bluetooth-status is still there - it's just empty; not showing bt-on and neither showing bt-off).

.) bluetooth used to worked great. stopped literally over night.

.) no new programs installed / no settings changed / no registryhacks implemented

.) softreset doesn't help

.) bluetooth pan-driver still shows up in system/network cards (private ip of 192.168.0.1, as it used to be)

.) OS: original wm 6.1 rom

anyone had any similar expierences? any ideas, as to what might have happened? any recommandations (other than hard-reset)?

TIA!