Computer: 20" imac, 2.66 GHz Mac OSX 10.5.8 Wired keyboard Okay, these are the symptoms: The + key on the number keypad doesn't work, but the one on the main part of the keyboard does. On turning on the computer, as soon as (for example) I open Safari and the Google page appears, a row of plusses appear; +++++++++++++. The plusses will keep appearing until I press the space bar. Then I can delete them. The right hand shift key works with everything but the " key, but the left hand shift key is fine. There were problems in the past; I had the "you have stupidly pressed the wrong key" chime repeating and repeating. this stopped, many months ago. I did wipe the keyboard down with a cloth that was slightly too damp and some keys stopped working, but after leaving the keyboard in the sun for a couple of days all was fine. That was months before the +++ problem started and months after the "you have stupidly pressed the wrong key" stopped. The +++ problem was worse at one time, occurring at random while the computer was in use. I also suspect that some keys do not always function when tapped, but that may well just be my typing. Having typed this out and thought about it, it would seem that I may have damaged the keyboard when I wiped it down, but you may know better. Any ideas?