In Portfolio View, stock alerts are stuck on Mar 13 date!

I use Quicken 2005 Home & Business. When I update my stock portfolio, all the alerts (red exclamation points) next to each stock seem stuck on a date of March 13. It's been that way for weeks. The stock prices update properly, but I can't get these alerts to get off the March 13 date. Why does that happen, and what can I do to fix it? Thanks in advance... garret at garretswayne dot com