> quite literally felt like I had a degenerative neuromuscular disease when I used the trackpad Was it jittery? I had this problem with an older thinkpad when

> quite literally felt like I had a degenerative neuromuscular disease when I used the trackpad Was it jittery? I had this problem with an older thinkpad when plugged into AC, but the problem went away when unplugged, so I assume it was just a case of bad isolation from the 60Hz AC signal.