Hi, On 2012-02-29 13:52, niverde at anche.no wrote: > Help me! The command 'alt 123' do not produce '{' but 'i' in my > TeXworks editor. I would like restabilish it. It works as expected for me on Windows XP... Did you try other "alt" codes? Do they produce the expected characters? If not, is there a pattern to it? HTH Stefan