OS X 10.11 Beta 5 - OS Hang after login

[2slow86]

Hi All,
Help! After installing OS X 10.11 Beta 5, the OS Semi-Hangs immediately after login.
I say semi-hangs because the OS menu bar still responds to mouse movements, but does nothing else (e.g. select System Preferences or App Store and nothing happens). The dock bar does not respond either, and cannot start the Activity Monitor to see what's going on (nothing happens when you select it).
The fan is nor running high, so not high CPU usage. Tried Safe Boot without change. The Macbook just sits there.
Any tips?
Hardware: MacBook Pro Retina late 2013 - 16GB RAM, 1TB HHD, 2.6Ghz CPU.

 

[appltech]

Try reinstalling. Some people say that a fresh install does the trick.
Make sure that your Mac has a connection to the internet. Then turn on your Mac and immediately press and hold Command (⌘)-R until you see an Apple logo or other image.
Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the onscreen instructions.