I'm running Kopete 0.11 on KDE 3.5 and the automatic spell check is not working for me. I, of course, have the option checked under preferences. I have aspell, which I assume is what the Kopete spell-checker uses, installed as well. Are there any other dependencies for the spell checker or could it be a different problem? Thanks in advance.

Also, when my conversations start getting long I get an annoying lag between when I hit enter and when my text appears in the chat. Might there be another way to fix this than reducing the max number of chat window lines from the default 250?

Same here, this isn't working for me either, but I'm assuming it's a bug because that's all that comes up when you google it.

I would assume it's a bug, because your package manager would get the dependencies. You could try to install it from source, if you haven't already.