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Not mine. Does nothing at all.

Edit: now it does, after a restart. Most of my minimise buttons grey out after a few minutes of having an app open: happens with Finder windows, iPhoto, iTunes, Safari and others. Happens all the time, and has for ages.
 
I have noticed this for a while now too. Happens on both my Macbook and Powerbook. It goes away after a quick log out. I think it has something to do with pressing a key stroke accidently or something?
 
If you're asking me, the answer is "No". I have Front Row installed. This has been happening since at least 10.4.7, and is not related to pressing a key by mistake.

Ok, nevermind then. I had just seen problems with the Front Row Enabler causing the minimize button to be deactivated on windows that were open when Front Row had been activated.
 
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