[Doitsu]

Originally Posted by BookWalker

I chose the default option for all users.

In extremely rare cases, malware and/or viruses may cause Sigil to malfunction.
Please perform a virus scan (select Scan options > Full scan).

Since you mentioned that you're an expat:

1. Are you using a Windows version with a display language that does not use the Latin alphabet by default? For example Russian, Chinese or Arabic.

2. If that's not the case, did you install Sigil in a custom program folder whose name contains accented/non-Latin characters. For example:

C:\Prœgrâms

If 1 or 2 applies, uninstall Sigil, create a c:\test folder and install Sigil in that folder.