I am actually posting this on behalf of my neighbor, so please excuse me if I don't have all of the particulars listed. His son is currently running Windows 2000 and at start-up, he receives a message with "Invalid Back web application ID 7288971." It has just started recently and he is looking to figure out how to get rid of it. I am not sure, if he has recently installed anything, so I would have to look into that. Any help or suggestions would be much appreciated.