asp.net network security and connectivity

Hello everyone how u doing? I have a problem with my application. When i click on the pages it works find with no error, when i login with my login name and try to browse on the pages, i get this error :

Server Error in '/living_to_please_god_world' Application.
The resource cannot be found. 
Description: HTTP 404. The resource you are looking for (or one of its d开发者_运维百科ependencies) could have been removed, had its name changed, or is temporarily unavailable.  Please review the following URL and make sure that it is spelled correctly. 

Requested URL: /living_to_please_god_world/PhotoAdmin/PhotoAdmin/forum.aspx

Why is there 2 PhotoAdmin folder instead of 1? Please help

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Not sure which authentication method you are using.

But the source of the problem is probably rights to the aspx page. When you are not logged in you are in the security context of one user, when you are logged in you are in the security context of another.

My guess would be that NETWORK SERVICE has access to the file, but the user you are logging in with does not.