I noticed this problem when I was playing Battlefield 2 when I was flying a helicopter. I was pushing down "shift" (to talk on Teamspeak), "w" "d" and a arrow key to control the helicopter and noticed that when I push down multiple keys, the last key I try to push does not respond. I doubt this is a hardware error and I was wondering if there is a option to allow me to push multiple keys in-game. I am able to push down a number of keys at the same time before the next key does not respond and I was wondering if anybody encountered the same problem and knows how to fix this. Thanks in advance!

BTW - I have a Sager 5720 if that matters.

I play BF2 on this laptop and haven't encountered any keyboard lag or problems. I don't use the in game voice and instead use external voice apps to communicate with my buddies. It's possible that the problems are more the result of the audio system lagging you rather than the keyboard.

You could try using an external USB gaming keyboard and see if that helps.

Every computer is like that it can only handel so many key presses at a time

I use the back button on my mouse for VOIP.
Now just if I could figure out how to click that greyed boost mic button in BF2's VOIP settings on my new np5792.