Thanks for the prompt replies. To answer Phishhead ( by the way I am a vintage Deadhead and love your logo), I will try things out with another browser to see what happens. I tried installing IE SP1 last night but since found out that Windows XP already has that. I will have to check my plugins as you suggested. The problem occurs when I am on a website and click just about anything. The problem is intermittant also. To answer Reverend and Rik, I am using McAffe firewall and also have Spybot working for me. Should I get Ad Aware also? As for clearing my Internet files, I will definitely do that. Again...thanks to all for the suggestions.