Suggest u review your messages log for any unusual events. The messages tab only shows log entries from last time u started BOINC. The full log is in your BOINC directory and is called stdoutdae.txt and stderrdae.txt. If you see anything suspicious, copy past it into a post.....correllate it to work units u know that had errors on them....inconclusives is fine....its waiting on more results to determine if valid or invalid.