I'm working on a system that use 11 controller from Diolan ( u2c-12 ). For some strange reason, I cannot access more than 8 controllers ( got the exclamation mark in the device manager that state that windows cannot load the driver for the device ). Anyone have an idea ? Is it the OS or the driver from Diolan ! By the way, Diolan support is horrible : e-mailed then twice and called them 3 times since last week and no response at all !