I recently upgraded my AVG free trial version to AVG9.0, and ever since that time, my system (running on Win XP Pro) has been incredibly slow. Clicking on links on web pages now sometimes takes minutes to respond, and if I'm not patient and click the link again, it will just freeze up the whole system. Running multiple applications (like Excel and Firefox) is now becoming impossible. Is AVG9.0 the most appropriate anti-virus program for Firefox? If I look at the Task Manager, there are over 20 processes running at any one time, with at least half of them starting with 'avg'.