Hi everyone , to keep this topic short, I will try to explain best i can, ketron sd1 is old now , so firstly not long after buying this keyboard the motherboard went down, it was exchanged and in its place the SD1+ board was fitted and worked perfectly,so now we have the sd1 sound card with the sd1+ motherboard and software 2.0 , now I have decided to upgrade with removing the floppy drive for the USB/Sd card reader,the software version now loaded think its 4.0 when using factory styles nothing on the 1st page will play , you may get 1 note but thats it , whereas 2nd and 3rd pages work fine , so has anyone come across this problem with software versions , and what would be the correct software version to use to get the keyboard fully functional again , any help greatly appreciated urgently.