Strange sound problem

Hokay.

XP Pro SP2
Latest drivers for everything.
Logitech Media Desktop keyboard
nForce2 ABit AN7 mobo with Athlon XP 3000+

Whenever I type at a reasonable speed, the sound seems to jump and lag. Its really strange and annoying because when I'm posting my music starts to gradually slow down and going out of time with itself.

Keyboard is connected with the keyboard to USB adaptor.

Any ideas as to what the problem might be?

 

Scratch that. Keyboard drivers weren't installed right. All fixed now.