Confirmed. I have a clean High Sierra VM that I make linked clones of for testing stuff. So I made a clone, removed Parallels tool. Upgraded. Installed Parallels tools. Video is working fine. No problems with the mouse pointer here.
Edit: "working fine" is a relative term. There are still plenty of issues. Firefox, for example, is completely wacked. I am in Retina mode. I need to test it in scaled mode.
Last edited: Jun 20, 2018