I know users of at least 2 Kalmbach web forums have had trouble with their browser spellcheckers not working when they type posts. I know how to fix this. The easiest option is to configure TinyMCE to allow the browser's built in spell checker to work. from the TinyMCE documentation:
The first and easiest to implement option is to utilize the browser's native spell check functionality by assigning the browser_spellcheck configuration option the value of true. Depending on the right click / context behavior you want, you may need to enable the contextmenu plugin.
Changing this option would be a big help for a lot of your users. And while you are at it, could you pass this suggestion up the Kalmbach chain of command so that users of Model Railroader forums can have the same experience?
Thanks!