Why Windows 7 dialog fonts are not anti-aliased?
suddenly my dialog fonts turned non anti aliased and looks ugly... I want to make them anti-aliased again how can I do this?
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Check if ClearType is still enabled:
Control Panel → Appearance and Personalization → Display → Adjust ClearType text
Then check your font settings for windows, menu items and dialog boxes:
Control Panel → Appearance and Personalization → Personalization → Window Color → Advanced appearance settings