Although I have installed the latest whisker version of Rhino 5.0, custom toolbars disappear forever. I was using the beta version 7.25.2012 (25-Jul-2012) with whom I had created my custom toolbars. Updating with the next beta, these have disappeared.
I also downloaded the neon 1.0 beta 9, I tried to install the plug-in but I do not you see the control panel. Rhino tells me that Neon has been successfully installed, but as rendering engines the program I only recognize Flamingo nXt.
I tried to copy the file "Egret.10.v50.x64" inside the folder of the plug-in rhino 5.0 but the program is restarted I crashed.