I am having some problems uploading syx files to my midibox, im prob just missing something small, but i have checked everything i could think of and an at an impass. The only way i can seem to upload to my midibox is with MIOS Studio, (hex files only) . I have tried MIDI-OX, (read all the web FAQ's, set the port routing, changed the buffer settings and delays, turned off the feedback) . It seems to send it ok, my midibox just seems to ignore it. Same with the Vmidibox64e ( which is really what i would like to use, rather than code it all in asm) here's what im using Midibox core (new ver kit from smashtv) midiman 2x2 midi io usb interface din kit from smashtv mios 1.8 uploaded on the midibox (id 0000) Midi-ox ver 7.0 Mios studio beta 4-3 i have uploaded some hex files, and i get feedback from some rotary encoders that seems correct, but i cant get the vmidibox64e to upload. If i could convert ths syx to hex, i should be able, but that seems like avoiding the problem rather than fixing it. any help here would rock... thanks