Occasional Keyboard Glitch

[Space Guy]

Occasionally, after going ingame while running Blockland, pressing certain keys or combinations of keys will cause applications to open or other things to happen. This sometimes persists even after I close the game.

Pressing 'L' quickly launches my Internet browser (Firefox)
Pressing Numpad Enter quickly and holding it will act as if I am repeatedly typing 'L'. (Light flickers on and off)
Typing certain combinations will launch Windows Media Player
Throughout typing this post my browser keeps resetting to the home page and selecting random parts

This has happened on two different computers, both running Blockland. I am attempting to get my keyboard replaced (if that is the problem), but so far cleaning it (vacuum cleaner) doesn't seem to have helped or fixed it.

[Ad Bot]

[Space Guy]

This effect happens after I have started Blockland once, to the main menu or anywhere, and then persists after I close the game until the computer is restarted.

[Truce]

Not sure if this is related, put when I press the 'volume up' key on my keyboard (laptop) while viewing the "Start a Game" window, it opens the brick selector. No bricks are displayed though; just the window.