Keyboard problem with MSI VR610x (openSUSE 11.0, KDE 4)

Hey, all. I need some help.

I installed openSUSE 11.0 (x64) at my MSI VR610x laptop (it has numeric keypad) and i see strange issue. After 5-10 minutes working with firefox, keyboard becomes slow (needs 2 clicks to type a symbol) and then it seems to be disabled at all. But i can input to another applications (e.g. Konsole). If i changing terminal (Ctrl + Alt + F1) and coming back to KDE (Ctrl + Alt + F7), it starts to work for a short time.

Now I’m using Generic 105 key keyboard type. Tryed another types, but unsuccessfully.

Can’t find similar problems via googling, so could you help me?

I forgot to say that when the issue occurs, Konsole also fills strange. When trying to scroll commands history (up and down keys) it types symbols instead.