I, too, had the problem of 2.5.5 hanging on the "New File" command, whether accessed from the drop down menu or the tool icon. Today I tried moving all my templates to a different folder and moving them back into the templates folder a few at a time. I found that the culprit was a "bak" file to one of my templates that I assume NWC made when I changed the template back in 2011. I'd never had any problem with it until this version. However, with the offending file stashed safely away in another folder, everything's back to normal, even with some nwc files in the templates folder that really don't belong there.
