Sense, A cursory glance of the log file seems to indicate the OS is normal. However, if you want, re-install the OS and, as a first act, download, install and run Adaware right away. And keep updating and running Adaware every few days if your machine sees heavy internet usage. If all else fails, download and use Mozilla Firefox, IE ko jhamala and inherent security risk is over! Also, to the user with network problems: Addendum: If your machine has Windows XP with Service Pack 2, that opens up a whole new can of worms. Well beyond the scope of what can be tackled without expert onsite assistance.