A Problem

It may be a little while before the next set from the Flowers of May Day comes out. There are a couple of reasons but the main one is that ever since I added the Pets EP to my computer I've had to reload the "The Sims 2" document file every day just to get the game to come up. I replace the file and it loads fine. Reset the "Allow custom content" and restart, work in the game for a bit and then the next day I have to reset the folder again. I don't know what is causing the problem. I'm considering uninstalling the whole thing and starting over from scratch. I hate to do it though because I'm going to lose some hard work that way. Any suggestions would be appreciated.