Update on my Parallels 8 experience Now that a month has gone by since I started using XP on Parallels 8, I wanted to post an update. But before I do, let me give some brief background. I had the prl_disp_service problem on my 10.6.8 MacBook Pro 5,5 when I was running Parallels 6; I'm now running Parallels 8. Since prl_disp_service is not active when Parallels 8 is off (it was active all the time under Parallels 6), I never have any problems when I'm not using Parallels 8. And so far, I have not had any problems when I am using it either. I do have to add a disclaimer: I use Windows only when I want to print something (b/c my old printer is not compatible with OSX) or when I need to use some Windows-specific software. Thus, I seldom have Windows on for more than a few hours at a time. Maybe developers who have Parallels 8 on all the time have some problems with prl_disp_service; I don't know. But I haven't had that experience. The only problem I've seen so far with Parallels 8 is scrolling. Sometimes the scrolling will get super jittery--to the point of being uncontrollable. It happens less often under WinXP than it did under Win8 Release Preview, but it still happens often enough to be irritating. I never had that problem with Parallels 6. Other than that, I have not had any problems with Parallels 8 or any problems in OSX caused by Parallels 8.