What is that in the photo? A clip for a Lisa with two rows of inline pins? You took the crystal off the board (that's the component most likely to get in the way)
Bet ya that either A) you've got a short or B) you've got an unconnected pin.
The surface mount components on the left hand side are incredibly close to the Lisa chip reducing clearance and effectiveness of any clip.
If you've managed it... what next?
