In the NASB and ESV I use the reverse interlinear feature at the bottom of the pane.  I often click on a word in the english text so that the greek word will be highlighted in the reverse interlinear.  About 25% of the time, Logos sputters for about 5 seconds and then presents an Oxford dictionary entry for the word that I clicked on (once).  
Is this a known problem? Is there a work around?  Or, am I doing something wrong?
TIA, Brian