I have a few web parts pointing to asp.net pages. They load fine initially,
but take a painfully long time to load when you click the refresh web part
icon. The .net framework has been installed on the same machine as
sharepoint as well as having the asp.net code on the machine. Hitting the
asp.net pages outside of sharepoint are lightning quick.

(As a test I created an htm page with just some text. Even this was
painfully slow to refresh when using the refresh web part icon)

Any ideas?