Victor - Hi. You need to update your virus definitions regularly. For Norton, go to http://www.symantec.com. You will find a link to Download Virus Definitions. On the same page, there is also another helpful link: Symantec Security Check for Home Users. Maybe this will find the problem. I hope this helps - Ivy Davis -----Original Message----- I got about 100 messages a day I got about 5 alert of virus detected by Norton and put in Quarantaine I got about 5 mail delivery system or mail delivery service notifying i sent messages sometimes with virus with funny address (i did'nt sent those messages) I checked regurlarly my disks for virus with differents system Norton pc trend and they never find any viruses generally the types of virus are Klez or big bear(?) not sure of the name!! That starts about 6 weeks ago at the beginning i think i could last one day but it's getting worse Thanks for your help Victor GOBERT [log in to unmask] Curious about the people moderating your messages? Visit our staff web site: http://freepctech.com/staff.shtml Curious about the people moderating your messages? Visit our staff web site: http://freepctech.com/staff.shtml