screen flciker

I had been using Parallels 17 to play "Battle Academy" (a Steam game) and it worked perfectly fine. Then I "upgraded" to Parallels 18 and, when playing the game, the screen flickered so badly I had to stop. I tried everything (RAM allocation, screen resolution,...) and nothing alleviated the...

Hi, I wonder if anyone can help me with an issue that's driving me mad. I'm running the latest uptodate version of Parallels 13 and Windows 10 Pro and have the lastest O365 suite installed. All is well apart from, randomly, when in Outlook (and usually the mail view), the screen starts to...