I brought a Microsoft compatible Korean/English key board home to use on the computer in U.S. I installed it on a HP Pavilion with Vista OS. I went to keyboard settings and changed it to Korean, on the lower bar rt hand side I see the KO and keyboard symbol. When I click the symbol I have 2 choices, Korean or Microsoft IME. I have the Korean checked but am unable to text using Korean letters. The English letters work fine, anyone have any suggestions?