BurrMan....do you have bobcad V31 yet? If you do have you had a problem with the 3D connexions mouse freezing and or locking up? Mine certainly is. I am on build #2954 I think. I have updated the drivers on the 3D mouse and updated the drivers on both of the NVIDIA GTX 980 cards...still wonky. I also cannot preform a line parallel on one side...maybe a setting on my end? Thanks...you have helped so many.