In Internet Explorer 9 and Windows Live Mail the text in the application window (I'm using the Verdana font) is blurry, like this:

That is, until I resize the window, even by just a pixel, and then it looks normal:

Unfortunately, it doesn't take long for the text to become blurry again. Same thing happens in Internet Explorer 9. These are the only two apps that show this behaviour. I can't stand the fuzzy look and prefer the crisp look.
I've got the latest graphics drivers installed (Intel HD graphics) and all Windows Updates installed. I haven't experienced this issue in any other apps. I have ClearType turned off and have tried cttune.exe before and it didn't work.