Done av/malware scans...........all clear.
Disabled all real time protections.......no difference.
Re-enabled all such protection in all combinations...no change.
Uninstalled/re-installed Java.....no change.
Uninstalled/re-installed flash player.....no change.
Uninstalled/re-installed Opera...no change.....and am getting the same problems in IE
Virgin media support say there is no problem at their end
Will shut down and reboot router........see you sometime in the future..
The problem is now restricted to only three Forums.......Kitz, Opera Borwser, and TechSupport....