That did it. Thank you
Is there also a way to blink the square icon to the left of the nick of the person messaging?
In Tools > Options > Display, I know you can enable 'Blink icons' for Event:, Message: and Highlight: but checking 'Message' makes the icons flash for every channel as soon as there is new content.
I'd like to blink the icon only for private messages received .. is that possible somehow?