Thanks very much for your help. But I still get messages from my firewall. [application] from your computer wants to send UDP datagram to... Usually, application is "Generic Host Process for Win32 services" or Messenger, but sometimes also "weird" characters such as "P!Ar" or no application is diplayed at all in the Application filename box. Also there seems to be a problem with my firewall as I can't uninstall it (offline and with firewall disabled). When I get those messages, after several clicks on "deny", my computer crashes and restarts. Would it be advisable to reinstall everything to ge