There were 3 releases of OS2006: mistral, scirocco and gregale. One-click install file supports gregale because that is what most 770 users supposedly should be running among all OS2006 variants. Does anybody have a good suggestion about how to support all the OS2006 flavours, preferably without investing significant efforts into it? You still can use application manager to install software, just make sure that you are using repositories compatible with your firmware. For example, mplayer is still available in mistral extras repository, but it is frozen at mplayer_1.0rc1-maemo.18 version: http://repository.maemo.org/extras/p...ree/m/mplayer/ HE versions would not help here as mplayer is not packaged for HE versions on 770, only the latest OS2006 release is supported. Might it be a good idea to investigate this bluetooth issue to check if it is fixable in the latest OS2006 release?