Sometimes the BBS will throw away a post if you take too long composing it. The safest thing to do is to always select and copy the text of your post before submitting it. That way you can just paste it back if you encounter the timeout.

That said, there may be relatively easy ways to recover if you fail to do that.

Read the following suggestions so you don't have to recreate posts from memory.

(Does someone know an easy way to do this from IE? If so, post it.)