Anyone experience VS2008 (inc SP1) ignoring or losing Breakpoints randomly?

public static void Main(string[] args)
{
    if (Environment.UserInteractive)
    {
        Console.WriteLine("Starting service...");
        Service1 svc = new Service1();
        svc.OnStart(args);
        Console.WriteLine("Started");
        Console.WriteLine("");
        Console.WriteLine("Press any key to stop");
        Console.Read();
        Console.WriteLine("Stopping...");
        svc.OnStop();
        Console.WriteLine("Stopped, Press any key to exit");
        Console.Read();
    }
    else
    {
        ServiceBase.Run(new Service1());
    }
}