I can't login to my iCloud account after updating to mac os 10.8.2
I can't log in to my iCloud account on my iMac after updating to mac osx 10.8.2. I'm signed in to my iMac with administrator privilegs and receive an authentication window via iCloud system preferences - but login fails and starts over and over again.The login does not fail using the web-interface (www.icloud.com) or my iphone (ios 5.1.1). All contacts and calendar items on my mac are lost.
Any suggestions? Thanx!
iMac, OS X Mountain Lion (10.8.2)