Restore Very Slow - SQL 2008 - NAV 4.0SP2

I am preparing for a migration from Nav 4.0sp2 to NAV 2009.

I have backed up our live database (SQL 2005) and it has created 29 fbk files total 56.6gb. Our database has 4 companies. The backup took 3 hours. I can live with that.

Destination server is a DELL R7100 - 64bit dual quad core server with 40gb ram. Server 2008 64bit OS. 1gb netcard.
(dedicated no other apps installed or running or any other databases)
Raid config: 2 controllers 3 arrays.
Controller 1 array 1 raid 1 - 2 disks 15k rpm - OS
Controller 1 array 2 raid 1 - 2 disks 15k rpm - SQL logs
Controler 2 array 3 raid 10 - 12 disks 15k rpm - SQL database files

NAV client running on a DELL R7100 - 64bit dual quad core server with 18gb ram. Server 2003r2 32bit OS. 1gb netcard.
(dedicated no other apps installed or running)
Raid config: 1 controller 2 arrays.
Controller 1 array 1 raid 1 - 2 disks 15k rpm - OS
Controller 1 array 2 raid 1 - 2 disks 15k rpm - NAV backup files

Both servers are on the same network switch.

Restore has been running for 24 hours and only up to disk 50% of disk 10, 67% total database. This is far two slow!!!!!

I have read many posts but can't seem to find any obvious problems.
CPU utilisation is 3%.
Network utilisation is 6mbps

What am I missing. Database properties are listed in code below.

CREATE DATABASE [NAV40_Test] ON  PRIMARY 
( NAME = N'NAV40_Test_Data', FILENAME = N'E:\Company\MSSQL\Data\NAV40_Test_Data.mdf' , SIZE = 100MB , MAXSIZE = UNLIMITED, FILEGROWTH = 10%), 
 FILEGROUP [Data Filegroup 1]  DEFAULT 
( NAME = N'NAV40_Test_1_Data', FILENAME = N'E:\Company\MSSQL\Data\NAV40_Test_1_Data.ndf' , SIZE = 50GB , MAXSIZE = UNLIMITED, FILEGROWTH = 10%)
 LOG ON 
( NAME = N'NAV40_Test_Log', FILENAME = N'd:\Company\MSSQL\Data\NAV40_Test_Log.ldf' , [color=#FF0000]SIZE = 100MB[/color], MAXSIZE = 2048GB , [color=#FF0000]FILEGROWTH = 10GB [/color])
GO
ALTER DATABASE [NAV40_Test] SET COMPATIBILITY_LEVEL = 100
GO

IF (1 = FULLTEXTSERVICEPROPERTY('IsFullTextInstalled'))
begin
EXEC [NAV40_Test].[dbo].[sp_fulltext_database] @action = 'enable'
end
GO
ALTER DATABASE [NAV40_Test] SET ANSI_NULL_DEFAULT OFF 
GO
ALTER DATABASE [NAV40_Test] SET ANSI_NULLS OFF 
GO
ALTER DATABASE [NAV40_Test] SET ANSI_PADDING OFF 
GO
ALTER DATABASE [NAV40_Test] SET ANSI_WARNINGS OFF 
GO
ALTER DATABASE [NAV40_Test] SET ARITHABORT OFF 
GO
ALTER DATABASE [NAV40_Test] SET AUTO_CLOSE OFF 
GO
ALTER DATABASE [NAV40_Test] SET AUTO_CREATE_STATISTICS ON 
GO
ALTER DATABASE [NAV40_Test] SET AUTO_SHRINK OFF 
GO
ALTER DATABASE [NAV40_Test] SET AUTO_UPDATE_STATISTICS ON 
GO
ALTER DATABASE [NAV40_Test] SET CURSOR_CLOSE_ON_COMMIT OFF 
GO
ALTER DATABASE [NAV40_Test] SET CURSOR_DEFAULT  GLOBAL 
GO
ALTER DATABASE [NAV40_Test] SET CONCAT_NULL_YIELDS_NULL OFF 
GO
ALTER DATABASE [NAV40_Test] SET NUMERIC_ROUNDABORT OFF 
GO
ALTER DATABASE [NAV40_Test] SET QUOTED_IDENTIFIER OFF 
GO
ALTER DATABASE [NAV40_Test] SET RECURSIVE_TRIGGERS OFF 
GO
ALTER DATABASE [NAV40_Test] SET  ENABLE_BROKER 
GO
ALTER DATABASE [NAV40_Test] SET AUTO_UPDATE_STATISTICS_ASYNC OFF 
GO
ALTER DATABASE [NAV40_Test] SET DATE_CORRELATION_OPTIMIZATION OFF 
GO
ALTER DATABASE [NAV40_Test] SET TRUSTWORTHY OFF 
GO
ALTER DATABASE [NAV40_Test] SET ALLOW_SNAPSHOT_ISOLATION OFF 
GO
ALTER DATABASE [NAV40_Test] SET PARAMETERIZATION SIMPLE 
GO
ALTER DATABASE [NAV40_Test] SET READ_COMMITTED_SNAPSHOT OFF 
GO
ALTER DATABASE [NAV40_Test] SET HONOR_BROKER_PRIORITY OFF 
GO
ALTER DATABASE [NAV40_Test] SET  READ_WRITE 
GO
ALTER DATABASE [NAV40_Test] SET RECOVERY FULL 
GO
ALTER DATABASE [NAV40_Test] SET  MULTI_USER 
GO
ALTER DATABASE [NAV40_Test] SET PAGE_VERIFY CHECKSUM  
GO
ALTER DATABASE [NAV40_Test] SET DB_CHAINING OFF 
GO

Cheers

Charles ](*,)