It does not matter what I search for. The json and atom responses are not coming back either.
I believe that this is some kind of routing problem because when I log onto a server in US and do the same it works (I do my queries normally from Canada). To test, it is quite easy, just do any query on search.twitter.com directly such as: http://search.twitter.com/search?q=twitter from an IP that is in Canada. I think it happens elsewhere in the world based on some tweets that I have seen while searching for search.twitter.com. The search on main twitter site is unaffected (i.e. http://twitter.com/#search?q=twitter works) as it uses some different mechanism (what is that mechanism, that would be nice to know, because I certainly would like to have the same level of reliability as the main site at least, I don't think that streaming api is the solution as it requires authentication).
