I am having the same constant blink issue as well. I deleted all pm's in my inbox as well as from sent folder just to be sure. It still blinks. Still a newbie at all this code hacking so I need a little help with this one
Love the hack though. Like someone mentioned before, to many people leave pop up on pm unchecked and takes them days before they even realize they have a pm. This is a small but ingenious idea.
So, can someone kindly help me out?