[ICOM] 781 spectrum display problem

[Crocdonz at aol.com]

my spectrum display on my 781 is not centered on the frequency i am  
listening to,  its off to the right side 1/2 a grid or so. 
is there a fix for this, an adjustment? what do i do? is this a common  
problem? 
 
thanks
 
don-kd9mf