The spellcheck button in the message editor has been gone for a little while now. I don't know how prevalent this is, but I saw someone else mention it the other day.

I tried the usual clear and reset routines. This is happening in Firefox under Linux.

I tried another web browser (based on WebKit), and the spellcheck button wasn't there either. For that matter, the window size and mode switch buttons also went missing then.

Thanks for any help anyone can provide. (I am fairly stuck with my current browser, unfortunately.) Not having a built-in spellcheck isn't bad, but it is tiresome.