well, it's tested to work when installed to device, not sd card (might be an issue). i also have sdkcerts installed (google for it...). third thing you can try is to copy all the dll's to the \windows folder (sounds a bit desperate, i know...). as far as i don't have any device where i have the problems, i can't help much. i compiled this with arm-wince-gcc compiler, maybe some of you guru's can compile it in visual studio (i can post the patches...).