SUMMARY Maybe it's just I don't know how to use the program? Today when I tried to edit my events they are all gone "locked" mode. The colors of categories are gone and all turned to gray(I guess colorless). I tried to edit them by double clicking and right clicking and Edit, nothing worked. I always dismiss events when they popup, either "dismiss" or "dismiss all". Maybe I shouldn't "dismiss" them or what? Couple days ago similarish issue happened. All my events were gone. I had to reboot to fix the issue. This time I don't want to, too costly to reboot.