This happens about 50% of the time-
I'll type a big long paragraph only to realize that I miss spelled, or worded somthing wrong in the first line. Well when I click the cursor into the sentance to incert a word the word types, but instead of moving the rest of the paragraph forward, it just goes over whatever was typed there, and erases it. So I end up retyping the whole thing over again.
What causes this, and how can I avoid this from happening in the future? ( And don't say learn to type and know what your going to say before you type it!

)
Thanks,
Rick