I have a first generation 2.0GHz core duo macbook.
It has been working fine, until suddenly for no reason some of the keys stopped working. The keys that don't work are a, s, d, f, g, h, j, k, l, and option.
They will start working with some banging on the keyboard, and then stop working after about 30 seconds. I have tried resetting the SMC to no avail. :-/

What could be causing this, loose keyboard connector?