weird, you haven't remove the 16-bit support so how come that's the problem? also 16-bit support is meant for some of the really old softwares so that they could run under Win 2k or newer. In Windows, this refers to the way memory is accessed. 16-bit applications access memory in 16-bit "chunks" (2-bytes). Most DOS and Windows 95 and 98 applications are 16-bit.