It takes a while to browse internet, change to Mozilla and added Ram to 512 running at 2.8 GHz speed. Loaded Window defender, Norton Security and MacAfee antivirus. It is Slow and I have to quit the internet and once in a while there is a pop up screen form bugs@roboform.com and some were it says service pack 2. Is it part of service pack 2 or someone's bug in my computer? If it is not a good sign, Remedies????