Today I ran into a problem working on a demo for PerformancePoint, I wanted to extend my original web application in SharePoint (one web application for internal access and one web application for external access). However, it doesn’t appear that this plays very well with PerformancePoint pages published up to SharePoint. I think I may be able to solve it using ISA Server or another reverse proxy, however I don’t currently have one in place to play with. I’m heading to Chicago on Tuesday for a two day PerformancePoint training on Analysis and Monitoring at Microsoft so maybe I can get some answers then. If anyone has any input or advice I would love to hear it and I will continue to update my blog as I work through this issue.