yeh I figured that would be the case.. ended up having to reset device due to endless cycling and lost the installed version of IGO primo anyway. as I've successfully managed to get the co-pilot gps software installed and working I'm going to use that for now. I'll play with IGO again when I have time. over Christmas maybe as the co-pilot only works using the internal memory and not the external sd card. the downloadable apps seem to just adapt to the device resolution without me having to edit config or sys files or anything more complicated.. thanks for all who helped me.