Sometimes (this only happens periodically) when I type into the reference box (or note file, etc.) my keyboard types the wrong letters.  For example when I press "j" another letter appears.  It doesn't matter what key I press the letters are different.  I can even press the same key and get a different letter everytime.  I have discovered that if I type in Word that fixes things and I can go back to Logos.  Does this have something to do with the progamming language of Logos or javascript or something?  Is there something i should update, save my entire computer!  Thanks for your help.
AMD Athalon 64 3500 984 MHz, 960 MB RAM, XP Media Center Edition V 2002, SP3
By the way, I haven't ruled out keyboard possession! 