Annoying

[c00ky83]

My right arrow and End key have stopped working. That's annoying if you want to move your cursor to the right as they both do that in one way or another. Is it a coincidence that they both packed up?

[bluejonjo]

Are they part of the num lock keypad? Try turning it off if so.

[Mouse0_0]

If bluejonjo's suggestion doesn't work, you might have another key stuck down somewhere on the keyboard... with the PC switched off, run your hand across the keyboard a couple of times making sure you press all the keys.

Also, try disconnecting the keyboard for a few minutes, as this will discharge any static electricity that might be causing the problem.