Thanks for answering.May be there are two different problems .One is coming with antivirus.But i don't understand why now because I used Norton AV before without problem.May be the new software technology for the worm virus.I am curius to see if someone else with Norton AV 2005 encounter the same.Sure i can buy another antivirus but i just bought Norton System Works Premiere last Friday(149 Can$)And the other problem about ''i item remaining'' could be related to Renderosity itself.A suivre!