I am running Vista 64bit. When ever I start COD 4 or COD 5 I have to authorize Punkbuster A and Punkbuster B again because the application signature has changed. To do this I have to minimize the games twice, first a few seconds after the program is started and second after a few minutes of play. This is just a little inconvenience with COD4, but most of the time COD 5 will not resume after being minimized. Is there a rule or other setting that will fix this. When I was using XP 32bit I solved this with the dll filtering in advanced options. But I don't have that option now.