Version:           4.6 (using KDE 4.4.5) 
OS:                Linux

I've gotten pretty far with this, I've done xev on it and here's what I got back

KeyPress event, serial 34, synthetic NO, window 0x3a00001,
    root 0x1ad, subw 0x0, time 611916931, (168,-7), root:(546,281),
    state 0x0, keycode 111 (keysym 0xff14, Scroll_Lock), same_screen YES,
    XKeysymToKeycode returns keycode: 78
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x3a00001,
    root 0x1ad, subw 0x0, time 611917004, (168,-7), root:(546,281),
    state 0x0, keycode 111 (keysym 0xff14, Scroll_Lock), same_screen YES,
    XKeysymToKeycode returns keycode: 78
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False


This is what somebody else got back and their up arrow works just fine


KeyPress event, serial 34, synthetic NO, window 0x1200001,
    root 0x107, subw 0x0, time 931692, (214,394), root:(215,414),
    state 0x0, keycode 111 (keysym 0xff52, Up), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x1200001,
    root 0x107, subw 0x0, time 931769, (214,394), root:(215,414),
    state 0x0, keycode 111 (keysym 0xff52, Up), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False


This is what they got for scroll lock


KeyPress event, serial 34, synthetic NO, window 0x1200001,
    root 0x107, subw 0x0, time 937304, (214,394), root:(215,414),
    state 0x0, keycode 78 (keysym 0xff14, Scroll_Lock), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x1200001,
    root 0x107, subw 0x0, time 937424, (214,394), root:(215,414),
    state 0x0, keycode 78 (keysym 0xff14, Scroll_Lock), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

My scroll lock button doesn't light up, either
Some how, KDE symlinked the up arrow to scroll lock. Is there anyway I can change this myself?

Reproducible: Always

Steps to Reproduce:
Press the up arrow on any window

Actual Results:  
Nothing

Expected Results:  
Page to scroll up or in the console, scroll through the last used command(s)

I'm not sure my version numbers, so
Qt: 4.6.3
KDE Development Platform: 4.4.5 (KDE 4.4.5)
KDE Daemon: $Id: kded.cpp 1031637 2009-10-05 16:58:19Z lunakl $

Also, when I got this keyboard, it worked just fine. This is the second keyboard I've had for this computer, and had the same system installed.