I had another problem with Nmap,
i wrote down my host IP address to scan for it but after exactly 46 seconds it stopped and it gave out the following output:



Starting nmap V. 3.00 ( www.insecure.org/nmap )
WARNING: Could not determine what interface to route packets through to (IP address), changing ping scantype to ICMP ping only
Note: Host seems down. If it is really up, but blocking our ping probes, try -P0
Nmap run completed -- 1 IP address (0 hosts up) scanned in 33 seconds



if somebody knows what this means please tell me and thanks