Dear MacRumors Forums, I need your help. Wether it's a hardware or software problem, it started a couple of weeks ago; certain keys on my MacBook Pro keyboard don't work. Well, in fact they do sometimes, but fail to work seemingly at random. More specifically, the affected keys are: R, T, Y, U, I, and O. See a pattern? They are all placed next to each other on the keyboard. I initially thought this was a hint of an 'external injury' - i.e. liquid spilled into it, slammed into something etc., but there has been no such incident. I am the only user of the computer and have been very careful about it (the kind of person who gives a crazy stare to the guy placing a cup of coffee even on the other side of the table). Let me explain my problem more closely: - As mentioned, I have not detected any kind of systematic pattern to the problem's occurrence - it seems to happen randomly. The six keys all act together - either they all work, or none of them work. - The way I've learnt to solve it is by pressing a ****-load of keys, including the malfunctioning ones. Then, suddenly in this long string of random symbols, the broken ones appear. Once this happens, I am able use all keys again for a while (sometimes, though, I have to repeat this several times for just typing a single word). I can also make them work by holding down the key I want to activate and then press the adjacent not-working keys. But obviously this is all extremely annoying. - Restarting the computer doesn't work; if the keys didn't work before, they still don't work after restart. - I am not sure if they are velocity sensitive, i.e. if it helps pressing the keys with a stronger force. I don't think so (but sometimes I want to, in frustration). - The problem is not specific to a certain program; it happens when using the internet browsers, in text programs, in games and so on. System specifications: MacBook Pro, 2.3 Ghz Intel Core i5, 4 GB 1333 MHz DD3 (almost 2 years old) with Mac OS X v. 10.7.5. I prey for a saviour! Thank you in advance!