I understand the fix now, will rename the folder back to its original name. But I was able to , thanks to Keith, copy and install the .quad files into the printer driver through QTR installer. It was a workaround that worked.
The reason I renamed the folder was I wanted to keep the first version of PiezoDN in case your newer version did not work, but I actually made a mess inadvertently.
Getting good clean output using the individual carts, almost afraid to try the CISS again 