I agree that it is a terrible error message. Unfortunately Microsoft doesn&#x27;t take as much care with their Mac products as their Windows versions of the same, you can see this throughout the history of MS Office for Mac.<p>As an aside: Do error messages with only one button (&quot;ok&quot;) hint at a design problem? I often find that if you&#x27;re presenting an alert() style error, you&#x27;ve done something wrong before that which could be improved to provide greater user feedback (e.g. turn the &quot;bad&quot; item red, and add a label, etc).<p>I wouldn&#x27;t go as far as to say that alert() style errors are NEVER the right answer, but when you find yourself using them you should re-examine if you absolutely had to. They often hint at poor or lazy design.<p>&gt; Secondly, what an ignorant unhelpful error message is this?<p>What is it people think the word <i>ignorant</i> means? The sentence seems to make sense otherwise, &quot;unhelpful error message&quot; is fine as a stand-alone. But <i>ignorant</i> error message? Is the error message meant to be safe aware?