[NTG-context] Adobe Garamond Problems with letter combination "fi"

Hi, \usemodule[simplefonts] \setmainfont[AGaramondPro] \starttext Amficool \stoptext gives an "i" without dot, see attachment. And the letters "i" and "f" are curiously bonded. The second attachment shows the same word written in MS-Word, again with Adobe Garamond Pro, without this curiosity. Where this comes from and how to fix? Huseyin