I have discovered the problem is with my belkin usb wireless dongle, I rang their tech support which was pointless as they said its my PC.
I decided to put a wired connection to my pc and the net all sites work fine. The combofix has removed the right media problem I had before. So I will follow above on how to get rid of combofix, unless you say otherwise? As for the USB i don't know if there is a fix I need or if I should flog it? or whether the fact I use a N series router and the USB is a G series causes some conflict?