If you install Reporting Services on Windows Server 2008 (RTM or R2) and attempt to verify the installation by opening the http://SERVER/ReportServer
site, you may well see the following message:
The permissions granted to user ‘MCGEOWN\Sam.McGeown’ are insufficient for
performing this operation. (rsAccessDenied) Get Online Help
SQL Server Reporting Services
Additionally, you may be able to access the http://SERVER/Reports
site, but will have no permissions: