Using XP and Word 2003

While typing, accidentally hit some incorrect keys on my keyboard and suddenly found my typed information in red, underlined, and with strike-throughs. Went to Tools --->Options---->Track Changes and was able to undo the red color, the underlining and strike-throughs. But, I am still getting a balloon (i.e., when I put my pointer on a word, any word, I get a dialogue box that gives my name, date, time, and what I inserted). Also, the delete key on my keyboard is not functioning.

I did a system restore to an earlier date, to no avail.

Now, I have the problem with the balloon and the non-functioning delete key.


Any idea how I can get back to typing without these problems?