Hello, While trying to solve my earlier problem, I found that EDK 10.1 does not check to carefully for a valid version of Cygwin. I recommend people check their registries under: HKCU\Software\Cygnus Solutions\mounts v2\ To ensure that it is pointing to the EDK version of Cygwin (C:\Xilinx\10.1\EDK\cygwin for 32 bit machines or cygwin_vista for 64 bit). This did not solve my problem, but I wouldn't be surprised if it could cause some subtle problems. Glenn
