Changing caps is a hardware security measure. Caps leaks cause a lot of damage in a board (I know, I lost an A520 and a A2000 Mobo).
OK, not the damage level of a battery leak.
In my 1200 I have to change the video caps (the most importants ones), 'cause have some "noise" on screen. After changing everything runs fine. And agree the productivity mode needs a VGA monitor WITHOUT DS/FF.
I use now a C= 1942 on mine and if I use some higher resolutions I see a "soft" shaking screen.
Maybe the caps of the monitor are going bad. Overheting in customs chips are also by bad caps in the source part of the MOBO, speccially in +5V lines.