My broadband has been down for 12 hours (now back up) and while the broadband was down I tried to launch LR 6.0 on a WIndows 8.1 laptop it came up with an error screen:
Trying to close the error window gave the following:
The only way forward was to close that window and then LR seemed to be hanging; not operating at all.
Here is the 'About' info before the launch.
and I have now upgraded to 6.0.1
While my broadband was down I was unable to use LR; which is titally unacceptable.
I found this problem too. I had to unplug my PC from the network router (ethernet) to work. I guess disconnecting from the router by disabling the wireless would also have the same effect. Win 7 in my case.