Hi, I'm try to debug a RPC (serial) progam with SimpleCortex (other development board with onBoard debugger) - All code runs well but if I want to use RPC the device will not be detected by windows. Other USB Devices (e.g. USBHID) are running fine on both devices and get recognized. I've the same problem with my mbed 1768, but if I connect the mbed I can install the driver (this is working for the mbed, but there is no "unknown" device or any other device detection in the windows device manager/system)- If I try to install the driver with SimpleCortex connected I got a error massage "The driver could not be installed. No mbed microcontrollers were found" Any option to install the driver for a non mbed board ? I need debugging and all other mbed libs working good with the SimpleCortex Board... Or exist a alternative driver that work ? I compile with Eclipse C++ with CodeSourcery toolchain and use the same code for mbed and SimpleCortex (as I wrote -> all things works fine - but not the RPC/Serial part). Thank you very much.