Why are certain keys working intermittently?
My MacBook has developed a habit of not registering I, O or U unless I hold them down for several seconds. SOMETIMES nothing happens at all. Sometimes, they register. And, annoyingly, SOMETIMES, they work fine... but it's becoming a a real problem.
I have taken the keytops off and and cleaned underneath but I fear it could be a software issue or worse.
I have reset the SMC and PRAM.
I now use a bluetooth keyboard on top of my keyboard. What a pain!
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