I want to use my CFW10-SA without camera and directly with serial interface. But my computer doesn't have an RS-232 serial port, only USB. I'm using an USB-to-Serial converter between RS-232 filter whell and my computer (Prolific driver on Com Port 8), but I can't use it in CCDSoft when I select Filter wheel : CFW-10 serial or same thing in Prism 10 software, when I select stand alone Filter wheel => CFW-10 serial and Serial Port 8 (same thing if I choose Serial Port 1). Is it needed to install other utilities ? which one ? This filter wheel work great if directly connected to I2C input directly on my old ST-2000. Many thanks for your help.