CiD pop ups - help!!!!!

[spikeysmum]

I keep getting these Cid pop up ads and they are driving us all crazy. I have run AVG anti virus, Windows Defender, and Spybot but none of them can find it There is no listing in the add/delete programs page so I cant find where it has come from. The computer is running really slowly and keeps freezing and I think it mustbe this CiD that is causing all these problems. I have read other answers and tried to use the cidhelp link, but it wont let me download for the general removal - says my security wont allow it. I have turned off everything I can think of but I still cant get it.

I would be grateful for any idiot proof help anyone can give me. Thanks.