May be the Keyboard cable error
Sometimes, quite randomly, when I press a key on my keyboard, a number comes up. For instance, if this problem was happening right now, and I pressed the "a" key, the number 0 would come up. If I press any character key again, a 1 will come up, and if I press any character key again, the number 2 will come up, and so on. So, if I pressed aaa, or abc, or a29, or 974, or any other character key combination, the numbers 012 will come up. Also, the number sequence resets after 9 back to 0, or maybe goes from 1 to 0, or whatever.
Now, this doesn't happen often, and it usually goes away after a while, but it can be quite annoying. The most recent time it happened I was playing a game in Java when all of a sudden any key press would lead to the numbers 01234...etc, being pressed. I opened up some other java programs in my browser, and the same effect was there. But it did not happen anywhere else. In my browser and in notepad (and here), every key acted normally.
This has happened before. It happened a couple of times in google chrome, and I had to restart my computer in able to use it.
Thanks in advance for your help, and let me know if you need more information.
Win 7 64 bit
Lenovo Ideapad Notebook Y560