This one was making me bang my head against the wall. I was asked to look at a person’s Word 2003 program. When ever they tried deleting highlight text unexpected things would happen. I deleted the “Normal.dot” which corrected most of the items except when the person selected a word and started typing. The original Word did not delete.
The way to fix this is by opening Word 2003 and clicking on “Tools” – “Options” and then the “Edit” Tab. The item you need to check is called “Typing Replaces Selection”.
Hope this help someone else out!