Right side keys not working

Hey, I’m new to Opensuse and linux in general and I’ m not familiar to most of its features.
I’m facing a problem because the right side keys are not working except for the “enter” key.
I use Opensuse 13.1 and KDE desktop. I think it’s not a hardware problem because I have a dual boot and in Windows 7 it works fine.
Any suggestion?

Do the numpad keys move the cursor instead?
Try to press the “NumLock” key…

Sure, I have tried that. NumLock does not make any change.

Is it a non-standard keyboard? Try changing it’s type in system-settings > input devices.