This problem has gotten progressively worse. It happens with and without the keyboard attached. I've tried reseating chips but nothing seems to have made a difference.
Basically it types a paragraph of random (but uniform) letters then seems to hit return all by itself.
All the time it's doing this, it's beeping an awful lot, like an Apple possessed!
I can interrupt the mayhem intermittently with keypresses, but it continues to repeat the letter e.g. QQQQQQQQQQQQQQWWWWWWWWWWWWWWWWWWWEEEEEEEEEERRRRRRRRRRRR... etc
Are there any ICs I should pay special attention to?
I've searched but couldn't find an example where someone has had this exact problem.