Did you get it sorted?
I have the current version of Norton running, we had mega probs with McAfee (back in January when it shut our system down because I wouldn't buy updates!)
I also use Trend Micro scanner (Housecall) - a freebie which will check for and clean trojan's & viruses, housecall is free and so are their pattern files to repair or cull files
make sure you choose UK/Ireland from the drop down list
Rosemary x