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'SymRealWinOpen is undefined' – why do I get this?
An update to your popup-blocking software may be in order if you get the message 'SymRealWinOpen is undefined' on your machine.
‘SymRealWinOpen is undefined’ – why do I get this?
Apparently it’s a side effect of one of the techniques some pop-up blockers use to prevent
popups. I’d check with the vendor you got your popup blocking software from for
more information, and possibly an update.