I was drunk last night and accidentally spilled some beer on my laptop keyboard. It still seems to work fine but 5 letter keys don't work (zxcv and m).

I cleaned the keyboard, turned the laptop upside down and left it like that overnight. Haven't been on it since, apparently your supposed to wait 48 hours before turning it on again.

This laptop is 4 years old and probably not in the best health anyway, but otherwise I don't really think it needs replacing quite yet. Am I fucked, or should I just visit PC World and hope they can replace the keyboard/motherboard?