Yamaha CS80

Hi Everyone,
   
  I just got my CS-60, all the voices work (I can play 8 notes and sound will come out)  all of the switches and sliders work perfectly.  However when I play 5 notes the next note plays in the correct key but at a higher pitch than it should.  Sometimes it happens when I just play the first note, other when I played 5, 6, 7th note.....The voices seem to be intonated, just that crazy tracking thing.  Anyone have any ideas.....I am taking it to a tech as I know nothing about repairing it but just wanted to know if anyone have any thoughts about what could be the problem.  
   
  Thanks in advance
   
   

		
---------------------------------
Brings words and photos together (easily) with
 PhotoMail  - it's free and works with Yahoo! Mail.

[Non-text portions of this message have been removed]