[Weary Tourist]

Hi mickmc,
Lets start with the basics..
1. What operating system are you using e.g. Windows 95, 98, ME, 2000 XP and what version of IE browser are you using (Click on Help in the menu and About).

2. I guess from your initial post you use McAfee. Can you confirm that your anti-virus definitions are up to date, please.

3. Do you use a software firewall ? Is it McAfee Personal Firewall Plus, or another one, or none at all ?

Why all these questions ?
Well the steps to follow may vary according to what you are using. It will help the guys and girls trying to help you.

There will be other questions after this, and specific tasks you need to do, but let's take it one step at a time.