Case Sensitivity...Sellect * From Table1 Or Table1... Which One?

Hi everybody
I'm a newbie to SQL-Server 2005 so please excuse me for my silly questions
Recently i wrote a simple web-Page in which i select data from a table and then bind them to a GridView on the form
every thing was simple as follows:

        SqlConnection Con = new SqlConnection("Data Source=.;Initial Catalog=Test;Integrated Security=True");
        Con.Open();

        SqlDataAdapter da = new SqlDataAdapter("SELECT [ID], [Name], [Date] FROM [Table1] ORDER BY [Date]", Con);
        DataSet ds = new DataSet();
        da.Fill(ds,"MyTable");

        GridView1.DataSource = ds.Tables["MyTable"];
        GridView1.DataBind();

But I have a question , when i change the [Table1] to [table1] (With lowercase T) , i receive the following error
message:

 Invalid object name 'table1'.

why is that? could anyone help me? even i tried to test this issue in [Microsoft Management Studio] and i got the
same result . realy what's the reason? before and with sql server 2000 i didn't have these issue.

Thanks in advance.
Regards.