select text error using joystick pointer

[Bob.Teacher]

I have a Dell Latitude E4300 running Vista. I use the joystick for navigating
in the text. When I am working on a Word document aout 25% of the time when I
move the cursor somewhere it automatically selects the text between where I
started and where I moved the cursor. To unselect the text I have to go
ouside the text area an double click to clear it. How do I keep Word or Vista
or Dell from automatically behaving as if I have selected text?

 

[Peter T. Daniels]

Is there something in the joystick that's acting like a Shift key?
Maybe pressing down on it? When you move the cursor from one spot to
another and shift-click the second spot, everything in between is
selected. A simple click just moves the cursor.

Also, a single click (not a double-click) elsewhere ought to clear the
selection, which also suggests that it's something in the hardware
rather than in Word.