My PC is continually being infected with Swizzor which AVG heals or moves to virus vault. Today it is in a Program Files called Great Roam Dumb, which AVG cannot remove or quarantine. I have maually searched for the file but it wont let me remove it. Ad aware cannot scan either because as soon as it gets to the infected file it stops and warns me to remove the virus. Has anyone any ideas on how to get rid of this and how damaging this Trojan Horse is.