Reply #97: Here are some questions to ponder:

[Lydia Leftcoast]

Is her cubicle in a place where customers will see it?
If so, then she should remove the calendar. Personal statements of employees' beliefs have no place in areas accessible to customers. (If owners choose to do so, that's their business.)

Are people of other religions allowed to put up personal religious items in their cubicles? Would you have reacted to someone who put up a Buddha or a Native American religious symbol?

Do you forbid employees to wear crosses or Stars of David?