Several days ago I had an on-screen message telling me there was a Mozilla Firefox update. I had great difficulty installing it....right at the end a message kept appearing saying that "several files couldn't be updated" Eventually, it seemed to be installed and, on the Help menu it states Firefox 1.5 05. However, today it's all started again. Another message offering the update,yet each time I begin, it gets as far as "Firefox is installing" then, once again "several files couldn't be installed" etc. I've tried installing it from the check for updates section....same thing. I'm completely confused...can anyone help?