Ok Thanks..
Its def AVG Anti Virus Free
I also have Norton internet security 2005 (which has been renewed until 28/08/08)
I have also noticed PC Tools Spyware doctor which downloaded with a google pack.

I ran a scan today and Norton showed clear but spyware Doctor picked up a trojan proxy ranky infection? I do scans pretty reguarly and one will pick up something and the others dont so I am afraid to get rid of one but not the other.

I have noticed the system is ok when a browsers is open clicking from site to site. its slow when switching on and when you first open a browser as if there are lots of things running at the same time but nothing (obvious) is open?

Thanks again