Hey djinfinitee,
Before you continue to change unnecessary things. What you are describing will most likely be on one and the same faulty cap (100uF 25V), as described in more detail here, for example:
http://joeyfehrenbach.tumblr.com/pos...pair-adventure
or the cap(s) mentioned by Timo here:
http://infekted.org/virus/showthread...highlight=boot
(last picture)
So the best thing to do is to replace the left one and see if it works..
(That's just a guess.)
greetings,
rio