Poof! Disappeared!

This just happened:

1. I type my blog post *clickety clack clickety clack*
2. I hit the publish post button
3. I check my blog post
4. Several paragraphs are missing!
5. I retype my blog post from memory
6. Repeat Steps 1 to 6

Aaargggh! This blogger. Has anyone ever encountered the problem where you write a lengthy post, they you hit publish and when you check your blog post, several paragraphs are missing! It just happened to me and its happened a few times before this too. Really annoying and a waste of time. Probably I should do what most people do, type in word then copy and paste before publishing. This way at least my blog post won't disappear into thin air.