I have the same problems here:
Sie befinden sich in 279.680,0, 311.658,0, 23,9 in Red Roses auf sim9095.agni.lindenlab.com (216.82.42.31:12035)
Second Life RC Magnum 13.01.17.269162
I can't move on Magnum Sim my avatar seems to be frozen, but it actually moves but i don't see it
The world is loading very slow
Other Avatars don't load @ all
High Paket lose all the time : Paketverlust: 10.156/69.062 (14,7%)
It run fine on Letigre and secondlife server Release version.