Error Reporting service

hi
i am using SQL Server 2005 reporting services, i am getting an error message while deploying .rdl file error is:" Connection could not be established to remote server http://localhost/ReportServer"
Additional information is :
"client found response content type of text/html; charset=utf-8 but expected text/XML"Are you just trying to connect through the browser or to upload a file?|||Oh sorry I see. Are you able to connet to the instance through the browser?|||now its working properly, i have executed aspnet_regsql -ga aspnet commond on command prompt. But now while deploying i m getting another problem: "An internal error occurred on the report server. See the error log for more details."