I had the same thing happening with a porn site with the same response from the quilting board administrators. I called my computer geek friend and was told to download two free programs...Adaware by Lavasoft and Spybot. I did, and it got rid of most of the problem, but not all. I searched my 'programs' list from my start menu (where it lists all the programs but you don't have to go to 'programs' on your C drive) and found a new Antivirus that was a fake. I deleted it and all is well. The culprit is a program that tries to make you think it is protecting your computer. At least, that was what was happening in my case.