Hi Roaming
I think you pointed me to a very VERY hidden bug
For some reason you did not have any entry in #__opensim_groupactive allthough you are member of several groups. Even if you did not activate any group, an entry should be there (with ZEROUUID as groupID), but that wasnt the case for you.
Not finding this entry caused jOpenSim returning a FALSE during login instead of the active group. This did not cause any troubles in previous versions of OpenSim, but seems to do so in the current 0.8.x one.
I have fixed the query causing this, please try to login now.
Greetz
FoTo50