Gnats 6023 -  Update to: Crash with large memory usage from numerous diagnostic messages [2]
Bug Number: 6023
Release notes (y/n): n
For Release Nums: 7.2, 7.3

Provisional fix for "5 million lines of diagnostic messages..." QMessageBox
from not always being initially shown above other dialogs.  Before calling 
the QMessageBox::question() static method ...

   // First raise the dialog containing this DiagOutputWidget.
   QWidget* diagTopWindow = window();
   if (diagTopWindow)
   {
      diagTopWindow->showNormal();
      diagTopWindow->raise();
      diagTopWindow->activateWindow();
   }

... in method: DiagOutputWidget::appendMsg (cwDiagData*);