Hi, so ive been trying for the better part of a week to get this combination to work. And ive had moderate success I think its come down to a incompatibility between the current kernel in udoobuntu 2 and the mono library that repetier host uses. So ive been trying to downgrade the kernel to 3.13.046. But i only get black screen when i restart after the downgrade. Is there anyone who has successfully done a downgrade of the kernel that could help me? And i have to add, that im not that experienced with linux so there is proberly some very obvious steps i havnt done when downgrading. Steps ive done is apt-cache search linux-image sudo apt-get install linux-image-3.13.0-46-generic