You don't have administrator privileges on this computer ... (whats changed in 0.9.11?)

[Roland Kaser]

Hello

I just tried to make my usual test installations on the new 0.9.11 release.
But at this time the setup responses (in german) Sie haben keine
Verwaltungsprivilegien auf diesem Computer. Setup kann nicht fortgesetzt
werden. (You don't have administrator privileges on this computer. Setup
cannot be continued..). 

Can somebody tell me whats happend to the username mapping in 0.9.11 what
can I do to avoid those messages?

Thanks

Roland Kaeser