I've been using Gmail Notifier for a few years and it was quite happily working until about 2 hours ago. I now only get a 404 error code. I've uninstalled/reinstalled a few times and nothing happened. Any suggestions?
A 404 error means that the content your are trying to access is not found. Try to close the application and start it again. Alternatively, configure your firewall or your security solution to allow the application to communicate with the Internet.