<com:TContent ID="Content">

<h2><strong>Without</strong> GroupName it is OK</h2>
   <com:TRadioButton ID="radio1"  Text="Radio Button 1" /><br/>
   <com:TRadioButton ID="radio2"  Text="Radio Button 1" /><br/>
      <com:TActiveButton id="button1" OnCallback="noGroup" Text="test without GroupName" />
<br/><br/>
<h2>But with the same...</h2>
   <com:TRadioButton ID="bad_radio1" GroupName="bad" Text="Bad Radio Button 1" /><br/>
   <com:TRadioButton ID="bad_radio2" GroupName="bad" Text="Bad Radio Button 1" /><br/>
      <com:TActiveButton id="button2" OnCallback="group" Text="test with a GroupName" />

<com:TActiveLabel ID="label1" Text="Label 1"/>

</com:TContent>