keyboard- when I type sometimes applications appear.

Hello sometimes when I type keys on the keyboard applications seem to appear. This happens quite a lot, I keep clicking control button and it eventually gets back to normal. Does anyone know what I can do to stop this happening.

This happens when, while you are typing a doc or like in a post like in here?

Try to see which keys bring up which Programs, maybe you have a hot-key set up for those. Do you have any special Software installed for Keyboard and Mouse?

It usually happens when I am on the internet and I think I have any special software for mouse and keyboard.