In Control Panel, look at the settings for your mouse. Perhaps the
sensitivity for double-clicking has been modified?

--
Stefan Blom
Microsoft Word MVP


"EL3888" wrote in message
...
I opened a new document in Word and now every time I single click
with the
mouse, I get multiple lines selected. I restarted the computer and
opened
another document with the same results. How do I prevent this from
occurring?