note 29758 rejected from install.windows by rioter

I have been using PHP for several years now so I've seen most of the common pitfalls with Windows installs but this latest problem has me stumped. On my two most recent installs I have come across some problems... Basically my old unpatched Win2K/IIS server ran PHP fine, all as expected. On the last two installs the only difference has been that Windows update was ran prior to the PHP installation, installing everything up to 02/2003. The PHP install ran fine but now when I open some PHP pages, within frames (i.e. a login script which begins as a single page with a form pointing to it's self, upon successful login the same script instead prints some frames to the page with the required PHP pages) I get 'CGI Errors. If I right click and refresh in the pane then the page refreshes fine and displays the correct PHP/HTML output. I'm assuming something has been 'fixed' by MS... Has anyone else seen this problem? Better still does anyone know how to fix it? Cheers Mike