Maplestory distorting keyboard input

Describe the problem. Be as specific as possible!: I isolated the problem I logged in this thread (http://www.southperry.net/showthread.php?t=32147) down to Maplestory. I was chatting on Skype with Maplestory minimized when I suddenly had all keyboard strokes converted to "b" "*" and "1". My JustinTV stream was lost and somehow AIM logged itself onto the same account. When I moved focus back to MS client I noticed I was logged off, so I logged back in and moved focus back off, and the problem was magically resolved, leading me to believe HackShield not only malfunctions in-game but for all keyboard inputs, regardless of whether I'm using the MS client.
There's also a similar problem with the Alt key being held down after I close the client which resolves itself only after I reboot (logging off from your Windows account does not solve the issue).
Should I log a ticket with Nexon or mail AhnLab? I'm severely disturbed by this rootkit behavior outside the client.

 Images of problem

Looking up "bbbbb*bbb***bbbbb" and other gibberish was the only thing I was able to do in Firefox until I logged back in to my account.

Hit on to Ctl + Alt + delete to fix that.
It happens on SEA, GMS and KMS.

I think you only need to hit control and alt on both sides.