I don't know if this counts as a technical issue because then I'm afraid my post will be deleted and I'll be directed to go to Modthesims2.com, but as far as I can find, there's no place to ask new questions and I can't find my particular problem addressed.

I've been playing the game like normal, creating new families in Riverblossom Hills and such. Then this morning I got into the game and the neighborood was simply gone! I got out of the game, restarted the computer, and and got back into the game. It was still gone! I know I didn't delete the neighborhood myself. As far as I know, there's no way to delete a neighborhood while you're actually playing in it, and the last time I had the game on I was in a house in Riverblossom Hills. I exited the game directly from that house, so there's no way I could have deleted the neighborhood.

Help!

Did you look in the neighborhoods folder? Whenever I install a new EP, my Pleasantview always "dissapears". Going into my neighborhood folder shows that the folder for Pleasantview has been renamed with -bak at the end. Maybe this happened to your Riverblossom?

There's a new forum in the help section for asking seasons related technical help questions. The link to the main help forums is in one of the stickies here.