Is there a spell checker on PPRuNe?

[with alacrity]

First posting on this excellent forum and wondered if anybody might answer my subject question.
I mostly post on the ATC forum and occasionally on Airlines,Airports and Routes.
I have noticed that spelling mistakes are often punished severely, sometimes with humour,sometimes not!
I now check my posts using a dictionary to avoid a mauling.
If there is a spell checker on PPRuNe,where is it?, if not,can i check my spelling using a spell checker similiar to the one i use when sending mail on AOL?
.Any replies appreciated.
W.A.