Awarded project notifications incorrect


Whenever I go in and make changes to a "Won" project and save it, it creates a notification that I have won the project which is incorrect. I'm getting credit for a whole bunch of projects just because I am assigning sales activities to them to get them on the bid calendar. Is there a way to change that? It really makes the Notifications watered down because most of the information in them is incorrect so no one ever looks at them.