Hi Suzanne
I experience this frequently in Word 2003. I'm trying to develop reliable
reproducible steps. I'm currently convinced it has something to do with (a)
having several documents open at once and (b) those documents displayed at
different zoom rates, ie one at 80%, one at 90%, one at 125% etc. But I
can't quite get reproducible steps, yet.
For me, View > Zoom > OK is enough to set the cursor size back to rights.
And, I find that it corrects itself when you exit Word and re-start.
Shauna
Shauna Kelly. Microsoft MVP.
http://www.shaunakelly.com/word