Yes. Here is a video.
http://www.youtube.com/watch?v=3grLWaZCSPU
Well the ping test failing is a bad thing, it pings standard servers, not a custom hosted server by scrapebox.
All timing out and 404 would be a connection issue. Timeout means no access, basically (if they all timeout). With a 404 its getting someone and something is generating an error code and kicking it back.
Quick and dirty test is if he has a laptop and can hook it to another ISP/network and see if it works will tell you if its his network on on his pc.
Its possible for instance its his DNS with his ISP, he could try google DNS as a test.
http://code.google.com/speed/public-dns/
Also it could be settings in his router/modem, thus the easy test with the laptop, especially if he has changed any settings in there since he got it.
All that stuff out of the way its somewhere on his pc, which is what is most likely anyway. If he has a rule in his firewall and you disable it, the existing rule can still fire. So have him delete any rules in the firewall regarding scraepbox and add a full allow rule rather then disable it, then restart the pc.
Also many anti-virus programs have firewalls built in, I have had McAffee block scrapebox before on my pc and I have seen tons of people with Nod32 or Malware bytes be blocking scrapebox. so delete existing rules and add allow rules in all anti-virus, malware checkers, firewalls and any other security programs.
You can also try a small test in safe mode with networking. Most of these offending programs don't load by default in safe mode and if it works in safe mode with networking then its for sure on his pc somewhere.
Those are the most likely scenarios. Also you could have him try to give his PC a swift kick and see if that helps.

lol (just kidding).

irate: Love the featured smiley! Need this for talk like a pirate day (couldn't resist hehe)

irate: