Keyboard and Trackpad Not Recognized
My old machine had been quite slow, so I opened it up to give it a cleaning. I removed a huge amount of dirt, put it back together, and things were flying for a couple of days. Then the keyboard and trackpad stopped responding. (The power button still works)
I then opened it back up to make sure that the connection to the logic board was clean and without any bent pins. Things looked good. So, without fully assembling the machine, I plugged it in and started it up. Still great. But then I put it all back together, and again the keyboard/trackpad isn't recognized. Is there something that I may be over-tightening? What else could be wrong? Please help.