I have the same question, my Windows 7 has 3 languages Pack and 3 different users using English French and Chinese Simplified, but I just can't changing the language of F-Secure Internet Security 2011 in settings. And F-Secure didn't write in Unicode, I have to change the language setting for non-Unicode programs and reboot and reinstall F-Secure only for switch to another language! I think the Avast! is much more convenient in this respect.
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