Consistency about details was never a strong point with this series. As producers and writers changed from year to year, the new ones didn't seem to know or care about the little things that happened in previous years. It's one of the things that Folc love to discover and laugh about. A good example is trying to figure out just how long Clark's parents have been married.
Long time Folc writers have pretty much accepted that Lois is a Libra and, like the aforementioned producers and writers, not worried about it. Unless you enjoy spending the time trying to track it down, it doesn't really pay to obsess over the details.
By the way, the explanation for the number change on Lois's apartement door is that the crew took it down to paint it and put the numbers on backwards when they put the door up again.
Jude
