vb.net program having MsgBox answered automatically

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Visual-Studio

VS2010

This is weird, but it may be a setting in VS2010 ... I am debugging my VB.net program and when I get a critical error because a Zip file is missing, instead of the MsgBox displaying and allowing me to acknowledge the fact by clicking the OK Button, the OK button is automatically "clicked" !!!

If File.Exists(myRARfile) Then
            ZipTest()
        Else
            myErrorMsg = "ERROR - There Is No RAR File - Aborting ..."
            MsgBox(myErrorMsg, vbCritical)
            MSWord.Quit()
            Exit Sub
        End If

On the right of the screen there is an IntelliTrace Window and it says :

User Prompt: Displayed ... Message Box text ...

User Prompt: Clicked "OK" The user clicked the "OK" button in the MessageBox

BUT I DIDN'T !!!!