When I use the computer, whenever a situation occurs where the
left right arrow key would have an action, the computer seems to have this key held down.
To explain (that wasn't very clear), if I'm on Facebook photo viewer, the arrow keys can be used to move to the next or previous photo. However, it feels as if the right arrow key is constantly down, as the viewer scrolls through all the photos. Another example is that in any text field, the cursor runs through the text to the end.
This basically makes any text input impossible as I cannot go back to correct things
(hence the reason for any mistakes in this post).
This doesn't happen in perhaps the first few minutes of the computer turning on, which suggests to me that it is software-related rather than hardware. Also, I have tried switching to another keyboard and the problem still occurs.
I am running Windows XP SP3 on a Dell Latitude S630.