Call of Duty Black OPS will only run one time and will not save. Once it is played, even though I log out through the system, when I restart or try to restart it wants to start in the safe mode or will not turn on at all. Once I do a reinstall, it will play correctly; however, I must start as a new player ...every bit of progress is lost an this play only lasts till I log-off. When I attempt to login...game will not start in either single or multi-player mode. whacan I do to resolve these problems.....from Steam, Sniper Ghost Warrior plays without a problem.