[CentOS] Wierd cursor jump when I type letter "y"

[Steve Thompson]

On Sun, 10 Jul 2011, Ljubomir Ljubojevic wrote:

> In large number of times when I type letter "y", like in "you" my typing
> cursor jumps 2-3 rows up or 1-2 words to the left.

The only times I have ever seen anything like this was due to a bad 
keyboard or a bad KVM switch. Does it behave the same way in a non-X 
session or at BIOS level?

Steve