I am having an iMac late 2006 and i recently installed a copy of windows on it . I found there is some problem with my graphic driver , the graphic card of my iMac is ATI Radeon 1600X 128Mb . I installed ATI catalyst version 9.3 and the latest 10.2 . Both not working for me I checked the display adapter on Device Manager, it shows "standard VGA Graphics adapter". There is nothing about Ati radeon X1600.... HELP please .