I have the same issues as mentioned above. After the "downgrade" to version 3.0 at least nmap does not work properly anymore. The only "workaround" I have found right now is to completely remove parallels 3.0 from the system. then my normal tools work again. After reinstall (but before scanning one of the virtual servers) everything works just fine... This is a MAJOR issue (I guess for more researchers) and I am supprised that there is still no workaround (or better still a correct implementation) available from Parallels support. If this issue is not fixed in the next couple of days I guess I will have to switch to vmware and NEVER look back... Ciao, Quuxster.