Reporting services not running error while installation of crm 2011

While installation of CRM organistion I was getting error on "Reporting Services", though the reporting service was running.

Start->Microsoft Sql server 2008 R2 -> Configuration Tools ->Reporting Services Configuration Management
and make sure the required stuff is initialised

Service Account
    -> Network Service

Web Service URL
    -> Virtual Directory: ReportServer
    -> TCP Port: 80
    -> SSL Certificate: (Not Selected)


Database
     -> SQL Server Instance: devserverx
     -> Report Server Database: ReportServer
     -> Temp Database: ReportServerTempDB
     -> Report Server Language: English(United states)
     -> Report Server Mode: Native
     -> Authentication Type: Service Account
     -> Username: NT Authority\Network Service
     -> Password: *******

Report Manger URL
     -> Virtual Directory Reports