This just started happening recently where the keys on the left side of the keyboard (a, q, z, 1, esc, `, etc.) either stop working or have to be pressed hard/for a long time to register. Restarting doesn't necessarily help since the problem sometimes persists at the login prompt, but it usually goes away after a while and then comes back, as far as I can tell with no rhyme or reason. Has anyone else had a similar problem? I'll probably reseat the cable, but since this takes a while I wanted to know if this was even worthwhile and whether I should just get a new keyboard.