So here I was, troubleshooting my laptop on my own..
Noticed it together with Mikee. It happened when I was squatting at Mikee's last night. Mikee noticed that when the ac adapter wasn't connected, keyboard's fine. When the ac adapter is connected, the keyboard starts to lock-up. We won't know if it's the ac without trying another ac adapter.
Mikee said it's probably grounded.
Will have to take it back next Monday on my day-off. Kainis. GRRR!