Keyboard Glitch M1330

First of all, I've already turned sticky keys off.  It's possible my computer might still think sticky keys are on, but the box is unchecked, and I turned off the shortcut (shift 5 times)

So I'll just be typing along on my m1330 xps laptop, and crazy stuff starts happening.    The volume will just max out, it will come off mute randomly (embarrassing in my classes), it will just keep trying to eject the cd drive (slot load, so it just makes the robot noise).

So all of these functions are controlled by the touch-media buttons up top. 

However, one other fun thing happens.  Every time I press the enter key my pointer freezes for 5 seconds or so.  So I'll hit enter after writing something in gmail chat, and then I can't do anything for 5 seconds (unless I hit alt+tab, or windows+d) 

I played with this for a second and tried to figure out what keystrokes triggered the problem.  I thought I was on to something when pushing "O" a bunch of times made the eject button go off, but then it started happening when I'd push L and not O.   But the enter key problem is consistent.  

Also, my keyboard is sluggish, and sometimes certain keystrokes don't work if one of the media button operations is going off.

Help?