I have a custom validator on my page associated to a text field. I want to use this with the ValidationSummary object with the ShowMessageBox property set to True. <BR><BR>In my code behind page in the ServerValidate function for the CustomValidator object, I check my values and set the IsValid property accordingly. My Text value is a red asterick, my Error Message is another value. <BR><BR>Upon clicking a Submit button with invalid data in the text field, the red asterick appears next to the field but the messagebox does not come up. <BR><BR>Am I missing something or does this combination not work?