Working on a brand new WIN10 setup with the latest Parallels RAS client. Take a look at the attached photo of the user's screen. Not sure how to describe the issue, but there's ghosting and the blue bleeds through to application windows and well. Connection to the server is "excellent" and low latency. Have tried latest client (17) as well as 16.5 to match the server. Tried connecting to multiple users on remote server to rule out the remote user profile -- same unusable result. Have another brand new machine for another user and display works perfectly (same network, v. 17, same display).
