I replaced the 2700pf cap with no results other than to learn that I REAAALLLLLY don't want to be replacing components unless pretty certain it'll solve the problem. I destroyed the old (and probably good) cap getting it out, almost scratched the daylights out of the boad trying to clear enough solder from the holes to get the new one in, almost destroyed the new one doing the same and finally got it connected, but only by seating it a mm or so into the board face and soldering it there
...and that was one 2 pin cap.... I can't imagine successfully replacing a 28 pin pic socket at this point. Not without hours and hours of practice and work anyway.