This has been an ongoing problem on Microsoft Sudoku for a very long time. There are threads that date back over a year with this problem. Microsoft has opted not to fix the problem or post a maningful solution for those of us that encounter this glitch. Obviously there is no incentive for them to fix it. They are rewarded with additional ad revenue every time thousands of patsies are duped into playing the same games over and over.
Since the company and its employees have financial incentive to perpetrate this problem, does it constitue a violation of Federal Wire Fraud 941. 18 U.S.C. 1343? I have made other posts on this thread that never get posted.
FYI: I have tried all the remedies that people post. If they work at all, it is very short lived. The problem keeps coming back