Template Postback not happening

[Baatezu]

I have added templates at runtime to my menu and that works fine.
The template includes a RadTextBox that I want to do a postback on TextChanged.
in the InstantiateIn function I have

                radTextBox.TextChanged += new EventHandler(radTextBox_TextChanged);

This works the first time it is called. Subsequent changes to the text cause a postback, but it does not seem that the TextChanged function is called.

            void radTextBox_TextChanged(object sender, EventArgs e)
            {
                RadTextBox target = (RadTextBox)sender;
                if (target.BackColor == System.Drawing.Color.Red || target.BackColor == System.Drawing.Color.Green)
                {
                    target.BackColor = System.Drawing.Color.Green;
                }
                else
                {
                    target.BackColor = System.Drawing.Color.Red;
                }
            }

The backcolor of the RadTextBox starts as white, turns red on a postback and doesn't change again when I change the text more.

I'm pretty lost on what to try to get the text changed to call properly more than the first time. Any pointers would be greatly appreciated.

[Baatezu]

OK - It was happening, I think there is an order of events issue that the red backcolor wasn't getting re-set before the textchanged function was getting called. I modified it to check for specific texts (yellow/blue/ect) and it changes to those each time.