I received a copy of Cubase 4 AI from Steinberg/Yamaha because I'm working with Vista and Cubase LE won't work with Vista. I got AI installed (a headache) and it works fine except some of my synths don't have instrument definitions. I have the txt definitions, but apparently AI uses XML instrument definitions. I can't find any documentation on this - and I'm lost trying to get my MM6 (for instance) working with Cubase. Help anyone?