On my computer, SJIS art looks odd; even though I have Mona font installed. It may have something to do with the fact that I run linux, but I don't know. SJIS art looks fine on my windows computer. Suggestions?
Go to Tools → Options → Content tab (or Edit → Options →... on my EeePC). Click on "Advanced" button in "Fonts & Colours". Pick fonts for "Japanese". Set serif to "Mona".