I moved an ASP.NET application from a XP to a new server and now I have this exception:

'System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral,

On this line code:

System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("it-IT");

My server is so configurated: Windows XP 2003 Sever SharePoint MS Visual Studio 2008 Team System Workgroup Server

I tried to change security setting, machine.config. Someone can help me explain me where and how to change what?

Thanks a lot.