nings:</b> If there are any warning
messages about the current circuit, do not allow the simulation to start.

<li><b>Always display warnings:</b> If there are any warning messages
about the current circuit, display the warnings, but let the
simulation start.

<li><b>Display warnings only with errors:</b>If there are any warning
messages about the current circuit but there are no error messages, do
not display the warnings and let the simulation start.  If there are
error messages, the warnings will be disp