) I had the same problem, except that sometimes my machine was freezing at startup, and sometimes at shutdown. I contacted MS tech support, because I had no idea what was going on. We finally concluded that Avast! was fouling up the script, (either startup or shutdown). The tech walked me through disabling the four avast! services in msconfig, and everything works fine. The odd thing is that my wife's computer is using avast! and she is not experiencing any problems. I want to use avast!, but I also want to use my machine. What to do?