Here is the link to the sharepoint forum, I was unable to find a 2003 category, so I just put it under 2010. No replies yet.

http://social.msdn.microsoft.com/Forums/sharepoint/en-US/1564175b-df7e-49c5-ba0c-2f50f3401cf9/2003-sbs-sharepoint-runtime-error?forum=sharepointdevelopmentprevious

I have two internel sites...

Lets call the first was 2.0 and the second one 3.0

2.0 works, but 3.0 doesn't.

2.0 is using the 1.1xxx aspnet and works, however when I put 3.0 on that it doesn't work.

I'm not sure what changed.