Why is Quit disabled in Mail.app? Recently, when I try to quit Mail, the Quit menu option is actually disabled and the keyboard shortcut doesn't work (it "beeps" just like when you try to do anything that isn't permitted). Screenshot for proof:



Any idea what's causing this and how I can prevent it from happening? The only "solution" I've found is to force quit Mail...

I'm running Mail 6.2 on 10.8.2.
This problem has previously been reported and apparently hasn't been resolved. Apple's solution is to force quit Mail. If you are not especially loving Mail, and don't mind upgrading, Mozilla Thunderbird is an excellent replacement option. I use it on a daily basis, and it never has issues. Hope this helps!