The system on which I'm writing this can't access www.naxos.com . Another system with the same network interface (A 2-Wire Home Portal attached to a DSL line) has no trouble. Typical results are from Firefox: www.naxos.com could not be found. Please check the name and try again. $ host www.naxos.com www.naxos.com has address 202.130.166.101 Host www.naxos.com not found: 3(NXDOMAIN) Host www.naxos.com not found: 3(NXDOMAIN) $ ping www.naxos.com ping: unknown host www.naxos.com However naxos.com, which has the same IP address, seems to work much better: $ host naxos.com naxos.com has address 202.130.166.201 naxos.com mail is handled by 10 email.naxos.com. naxos.com mail is handled by 20 postoffice.naxos.com. $ ping naxos.com PING naxos.com (202.130.166.201) 56(84) bytes of data. 64 bytes from 202.130.166.201: icmp_seq=0 ttl=235 time=192 ms 64 bytes from 202.130.166.201: icmp_seq=1 ttl=235 time=192 ms ... I'm running FC4 with the latest upgrades on an AMD x86-64 system, all latest upgrades installed. My other system (which has no trouble) is FC4, slightly out of date, on an i686 system. What's going on? Does my computer have a virus? Thanks - jon