Audigy 2zs Platinum

[S7a5]

After i upgraded my audio card to Audigy 2 zs Platinum i remarked that when i keep pressing my keyboard keys constantly while listening music, i can hear some scratches and delays in my speakers most of the time. I donno if this problem is related to a driver bug or probably i did smth wrong in settings Anyone familiar to this? It really p***es me off :s

My PC Specs are:

"Hardware"

Processor: AMD Athlon (Barton) 3200+ (at 2.2Ghz, 400Mhz FSB)

Mainboard: MSI K7N2 Delta-ILSR (with nForce 2 400 Ultra) (Audio card disabled)

RAM: 512Mb DDR PC3200 (Dual Channel 2x256Mb)

Graphic's Card: nVidia fx 5200 (AGP 8x)

Audio Card: Audigy 2zs Platinum (PCI)

Keyboard: Logitec PS/2 Access Keyboard

"Software"

OS: Windows XP Pro SP1 (with all current critical updates)

Drivers: All drivers are up to date

Same problem occurs with WMP9 and Winamp 2.91 :/