Start>> Control Panel>> Folder Options>> File Types will show a list of all registered file types on your 'puter. If you click on FLV it should be possible to change the default with the "Change" button. If one remembers correctly VLC automatically set this when installed. Maybe your other players are arguing over this. VLC seems to cope most things, so might be worth un-installing the others except Windows Media Player and see what happens. Quite why it shows a Traffic cone for these files I would love to know! Must be the French sense of humour - - - -waits for the hostilities to commence!