I have started facing some Keyboard issues recently. While typing on the keyboard, sometimes the letters get missed out. This happens many times with letter "s"and "v". These two letters normally get missed out while typing. There is no pattern to the error. I am using the Windows XP as my operating system. And I don't think that there is any issue with OS. Now I am using friend's keyboard and I have to give him back. Please help me to sort this problem.