Googled the trackpad problem and found the SIMPLE solution.

Mi Problema

Cheaper than a new one!

Mi Solución

Easy as pie. I have been working in the television / computer industry for over 30 years so might seem easier than it would be to a first timer.

Mi Consejo

BUY THE Pro Tech Tool Kit (wish it was US made!) - and apply pressure adequate pressure to the screws to prevent stripping the heads. Get some good glasses too! Use glass bowls or small cups to keep screws organized. GO SLOW and follow the great ifixit directions!

Good Luck!