jaws and the braille display

Hey Members,
 I recently purchased an alva satellite pro braille display. For some reason, 
when I go to read text, the braille appears kind of jumbled to me. I can barely 
make sense of what I'm reading and the lines are too close. Any suggestions as 
to how I can set up the braillle display to read properly, without the lines 
being jumbled? I finally upgraded to jfw 6.20. Thanks.

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