First of all, this ISN'T the problem you probably think it is, form the title. Most of the Windows 7 drop down menu problems are related to it not staying open. This is why I couldn't find my answer online. Mine's just weird, and slightly annoying.
I'm on a laptop, and I've set it to sleep when I close the top. When I turn it on, everything's fine. but when I use any sort of drop down menu, or right click, the first thing I click on stays there until I sleep the computer again...it's almost like dead pixels, but it's an entire option bar...
I've attached a picture that shows what happens. I'd like to know how to stop it from happening, or at least fix it when it does!