I've got it a few times, included right this moment in Dragon.
Just happy it isn't just me, I had to install windows 7 on my laptop so I could do some homework for a college class I have this semester that required a newer version of Windows. Did a clean install and was trying to figure out if I needed to do some tweaking of the windows settings.
I will say this, after clearing out everything and starting from scratch, when I do get the play now button, the game play has never been smoother. Although I did eventually re-install game booster to feel better, but haven't turned it on yet.
Maybe the extra GB of ram I took from my wife's laptop when she wasn't home has helped some too. hehehehe so now I have 4GB and she has 2, I would go for more, but 32 bit windows can't access any more than 4GB of ram anyway.