I keep getting an error that states I cannot insert explicit value for itentity column in table 'Users' when IDENTITY_INSERT is set to off, can anyone help?


Code:
/****** Object:  Table [dbo].[Users]    Script Date: 5/6/2010 10:48:47 AM ******/
if not exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Users]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
 BEGIN
CREATE TABLE [Users] (
	[UserID] [numeric](18, 0) IDENTITY (1, 1) NOT NULL ,
	[NTAccount] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL ,
	[Active] [bit] NULL ,
	[UserChanged] [bit] NULL ,
	[UserAgreeDate] [datetime] NULL ,
	[AFSC] [varchar] (10) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[AFSC2] [varchar] (10) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[DutyTitle] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[UserName] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[Password] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[GroupID] [int] NULL ,
	[FirstName] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[LastName] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[NickName] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[LastLogin] [datetime] NULL ,
	[WingStructure] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[BioImage] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[LongDistancePIN] [varchar] (10) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[MilitaryRank] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[OfficeExtension] [varchar] (3) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[SmallImage] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[OfficeFAX] [varchar] (3) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[WorkStatus] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	[IsAdmin] [bit] NULL ,
	[LastUpdate] [datetime] NULL ,
	[EMailAddress] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
	CONSTRAINT [PK_Users] PRIMARY KEY  NONCLUSTERED
	(
		[UserID]
	) WITH  FILLFACTOR = 90  ON [PRIMARY] 
) ON [PRIMARY]
END

GO