Return of Reckoning

i downloaded the game for turrnet and when i run the luncher i get this error
Error: System.UnauthorizedAccessException: Access to the path 'D:\Warhammer Online - Age of Reckoning\art.myp' is denied.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream ...