Didn't know where to put this sorry. A friend of mine went on my Pro and went on some video site. It came back saying that he needed to download 'Codec-V'. He started to download it but I realised what he was doing and cancelled it and banned him from my Mac (Y). Anyway, I googled Codec V and got this; http://www.removeonline.com/how-to-remove-codec-v-trojan/ If it had downloaded, would it affect my Pro/files? Also, would VirusBarrier protect me from such stuff? Is a scan necessary? Thanks.