MapleStory behaving strangely

I have the exact same problem as you do. I know it has nothing to do with the keys getting stuck because I use a wireless keyboard on my laptop and when the problem happened, I tested it on my laptop keyboard and the keys responded the same way. I've also updated the drivers, so it has nothing to do with that. I'm not sure if it's coincidence, but it started happening when I purchased the wireless keyboard for my computer. What kind of keyboard do you use? I'm using the HP Wireless Elite. I'm also using Vista. I hope someone can pin point the problem, cause it really is a pain having to restart maple every time it happens.