I've read elsewhere that there's a component, possibly a resister that controls the clickwheel, it's at the edge of the board and can easily be damaged, apparently. . Hopefully someone else will be able to provide you with with better information about this then I can.
I had the same problem where the pins for the connector came off the ribbon cable.
I've read elsewhere that there's a component, possibly a resister that controls the clickwheel, it's at the edge of the board and can easily be damaged, apparently. . Hopefully someone else will be able to provide you with with better information about this then I can.