IE10 local page won't open CSS

Question

Just installed IE10, and even with a \"default reset,\" when I open a local page (like C:\\Documents\\index.html), it refuses to load a simple linked stylesheet, with a stra

Answer 1

I found it!

It's OK to use the Control Panel "Default Programs / Associate a file type..." to set .css files to be opened by Notetab Light (my favorite general-purpose text editor). However, if you go into Notetab Light itself and choose View, Options, Associations, and add css to the list, this generates the error I've been seeing.

Apparently, this is producing a registry entry that causes IE10 to be unable to open a local CSS file when it's called from an HTML page. IE9 wasn't afflicted by this (I never had a problem before, and I've been using Notetab Light for ages).