I've tried searching for threads that I contributed to several months ago, but found that the search engine only lists my posts for the past month. I've tried changing the search criteria to all posts, or last 100 days, but I still only get the last month's posts. The same thing happens when I click "View all of my topics" under "Contributed To Topics" under "My S200". Is the search engine working as intended, or am I doing something wrong?