Quote: billwill @ January 7 2010, 3:09 AM GMTUm, you probably have Christmas Cake crumbs or similar in the keyboard right inmside in the contact area. Or you spilled something & it has corroded the key contacts.
For the first hold it on end (If it is a laptop make sure it is POWERED OFF to PROTECT THE HARD DISK) and shake very vigourously. Try it every way that has the plane of the keyboard vertical. A separate plug in keyboard can probably be whacked with your hand on an edge too in attempt to dislodge the obstruction.
For the Second problem there is no real cure other than a new keyboard.
Cheers Bill. Will try that later.