ok... let's try test

1) switching to normal mode, going to control panel, bluetooth settings, there switching bluetooth visibility to OFF
2) switching from normal to auto mode for cleaner experiment, opening bluetooth in CP again to see it's exactly still not visible
3) starting BlueMaeno, it tries to connect, gets connected, mouse works well
4) closing BlueMaemo
5) going to bluetooth settings in control panel - and seeing bluetooth is exactly off, but visibility became ON

that's what I'm talking about