Hmm... I checked the page also with lynx, and it shows fine, so it can't be NS, either, but could explain the IE "feature" part 🙂
Still, how can determine the source of this error? If some IE browsers show the pages and some don't, then how can i be sure it is IE problem not the servers? I checked the php_info, and 'HTTP Response Headers' has 'text/html; charset=iso-8859-4' as content-type.
I think if one has a charset defined, that IE currently does not have installed, then it wants to install it right away, and does not show the page, only blank screen. Could this be the reason? That if the response header has some unknown charset which IE knows not about, then it shows blank page?