You have toggled on Overtype mode. Press the Insert key once or double-click
OVR on the status bar.

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Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
Word MVP FAQ site: http://word.mvps.org
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"space bar gone crazy" space bar gone
wrote in message ...
hit something on my keyboard - now the space bar doesn't work at the
beginning of sentences and the insert button erases characters instead of
inserting spaces --