The on start event has a check built into it to ensure compatability with past/future versions. This version uses a different format for storing the information, which makes it incompatable with previous versions. If you read the pop-up message, and had clicked Yes, then the script would\'ve continued, but any previous nicks/addresses that were stored would\'ve been lost. Clicking No is what causes the script to unload.
BTW: thanks for catching that typo...I\'ll fix the code.