Well, I seem to on occasion get "brownouts" where pages won't load, but I don't know if it is my server or some other server along the line between my PC and MY server. It lasts for about 30 seconds, and then everything is working normally again. Of course something like this will be pretty tough to nail down, because if it IS my server, of course when the techs look at it, they won't see the problem.
So if you have this happen to you, how about trying to access FaunaClassifieds and see if you have the same problem. If a lot of people have issues getting to both sites (which are on the same server), then that will give me something to go on.