When I open my reading plan on my PC (Running windows 7, 64 bit), I experience problems when I click on the calendar and list tab. For example, when I click on the calendar and list options, nothing displays. Also, by clicking on these two tabs the logos 4 screen that is behind the reading plan window will display black as if the computer is freezing. I have to close the reading plan window and minimize the logos program and then reopen it for the screen to reappear normal again.