singel ton & form elements

[kobi]

Hello,
I have 2 different classes
1. Form1 -class which is defined as single ton
2.MyClass- class

On the Form1 I have a label1 which is defined as public
From MyClass class I have a method, which set the label1 text ,but it is never being visualized on the Form itself

Any idea why?

see code example :

public class MyClass
{
      public void set label()
	{	
       Form1 F1 = Form1.Instance();// single ton
       F1.label1.Text=”in process”:
       }
}

Thanks