Fairlight-CMI

I have a IIX that the monitor is beginning the dance of doom! I am 
amature guessing that this would be caused by capacitors begining to 
fail due to age? The monitor and light pen work fine funtionally, But 
there appears to be a movement in the green monochome text portions of 
the screen. 
 Has anyone ever recapped a IIx or is that generally not a good idea. 
I know that I have had other "Vintage" audio gear recapped and it has 
made a huge difference as far as the reliability and maintenence 
cost's asscoiated with the equiptment.  Would anyone advise against 
recapping a IIx due to personal past experience or am I just way off 
base with my assessment of the problem?
 
Kevin Kelley
Audio Playground
www.keyboardmuseum.org