Korean language pack causes problems with Outlook email width

This has been an ongoing problem for me for some time now and I'm hoping someone can provide a resolution to it.

I had to install a Korean language pack in order to read Korean Word documents. The problem is that after installing this language pack, it causes some of my emails to appear a lot wider than they should and wider than they appear for others receiving the same email.

There seems to be a trend in that it happens with emails that contain Chinese or Japanese languages.

I uninstalled the language pack and the problem went away. Then recently I reinstalled the language pack and the problem returned.

Does anyone know why this would happen and if there is any way to fix it without having to uninstall the Korean language pack?

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