At some point in time, I just stopped coding for fun.  I used to go to work, finish my assignments and then upon arriving home I'd go and write stuff on the side for fun.  However, I now just go home and try to avoid the computer.  I'd rather read the paper, watch TV, go out to the bar, etc.

Is this a bad sign?  I mean I still try to keep up on the latest trends, hit up the developer forums/blogs/etc but I haven't said, "I want to learn language X - I wonder if I could write app Y in it"

Has this happened to anyone else?

This is a very common issue called burn-out. It happens to everyone that takes their work seriously. My advice is to take a few weeks off from coding and plan a long term project for fun. Then set aside at least 15 minutes each night to complete a part of the project. As long as you take it slow you'll be back in the game in no time.