I'm moving from CF8 to CF10 and having some issues. My CF10 install is a clean install on brand new server running Windows Server 2008 R2 64bit IIS 7.5. I've upgraded to CF version 10,0,11,285437. Out of the 50 or so Apps on the server almost everything works, but there are a few pages that just don't render at all. No error, nothing. Viewing the source for the page just shows an empty HTML page. Coldfusion logs are empty and there's 500 null error in the IIS logs.
While researching that issue I found many people recommending I rerun wsconfig after patching CF, so I tried that and it looks like my sites aren't configured correctly. During install I configured the sites individually (2 of them run in 32 bit while the cfadmin site runs in 64.) Now when I run the Web Server Configuration Tool as administrator I just get a Configured Web Servers box that is empty. When I click add the next window shows IIS, but the drop down for IIS Web Sites is disabled. Checking the Configure 32 bit web server option doesn't change anything. 99 out of a 100 pages work just fine, so it seems odd that the tool is telling me the server isn't configured. I'm not even sure where to start at this point.
EDIT: I've read most of the posts related to the wsconfig and none of the solutions presented yet make any difference. ASP.NET, .NET Extensibility, CGI, ISAPI Extensions, ISAPI Filters are all already installed. I've tried reinstalling CF, IIS, even going back to a clean snapshot of he OS several times and the result is always the same. I've even tried it with and without IIS Compatability.