If you see a blank blue screen, or a blue screen with a progress indicator (looks like a colored pinwheel), you may have an incompatible login item.

• 如果您看到蓝色空屏,或则显示有进程指示(看起来像旋转的彩色齿轮)的蓝屏,则您可能有一个不兼容的登录项目。