picture 'bowing' to the right?

[frenchy]

This is on my CTC-10 I'm still messing with. It is working fine now as far as the holds, color, convergence etc. The only quibble I have left (besides the remote!) is a vertical bending, i.e. a vertical line from top to bottom is straight in the middle but curved to the right on the top 1/3 and a little on the bottom too. Not bad but noticeable. Is there any adjustment that might take this out, or is there probably a bad/leaky cap in a certain spot that could cause this? I have not changed every non-ceramic cap in there, a few black plastic ones still in there and some yellow 1600v ones that I don't have a source for. What section or board or tube would this involve that maybe I should take another look at it's caps? It's not like a typical horizontal linearity problem where a circle would look stretched more on one side but evenly from top to bottom. It's just a general 'bowing' of the whole screen. It varies a little depending on moving the horiz hold (within locking range of course). Thanks!