I've noticed that the HTML editors do not have spell check when making a normal post reply, but quick reply does.

I'm curious, is that expected or am I doing something wrong?

Same thing happened with these four browser/OS combo's.

FireFox 4.0 with WIn7
FireFox 4.0 with XP
IE 8.0 with WinXP
IE 9.0 with Win7