keyboard functions changed after sudden shutdown

help!

my keyboard has suddenly changed what some keys do

the many are fine, but the following changes occurred;

L = mute
n = nothing
o = nothing
y = q
6 = nothing
9 = nothing
rctrl = lower volume
lctrl = nothing
left arrow = nothing
right arrow = shift

this seems a very odd set of changes

i've checked my keyboard settings in control panel and it is set to qwerty





this first occurred directly after my laptop unexpectedly cut out (without shutdown) for the second time in about half an hour, both times playing a game.

i've scanned for viruses and come up clean.







i've checked event log and found the following;


- 3 like this;

Source: Microsoft-Windows-Kernel-Power
Date: 06/06/2014 21:58:00
Event ID: 41
Task Category: (63)
Level: Critical
Keywords: (2)
User: SYSTEM
Computer: InspironAPP
Description:
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
<EventID>41</EventID>
<Version>3</Version>
<Level>1</Level>
<Task>63</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000002</Keywords>
<TimeCreated SystemTime="2014-06-06T20:58:00.922072800Z" />
<EventRecordID>14067</EventRecordID>
<Correlation />
<Execution ProcessID="4" ThreadID="8" />
<Channel>System</Channel>
<Computer>InspironAPP</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="BugcheckCode">0</Data>
<Data Name="BugcheckParameter1">0x0</Data>
<Data Name="BugcheckParameter2">0x0</Data>
<Data Name="BugcheckParameter3">0x0</Data>
<Data Name="BugcheckParameter4">0x0</Data>
<Data Name="SleepInProgress">0</Data>
<Data Name="PowerButtonTimestamp">0</Data>
<Data Name="BootAppStatus">0</Data>
</EventData>
</Event>







and several warnings about the speed of processors being limited by firmware



please help asap!

thanks in advanced

hey.

i was playing 'sniper elite v2' which i recently got on steam

only played it for the first time today, but since both crashes ocurred while playing it i uninstalled it



when i said keyboard functions changed, i should be clear on the fact that i didnt mean the function keys specifically, although some of those have also swapped.

i simply meant the role of some of the keys was now different





stupidly ive just realised i posted this to the windows 7 forums, but im actually running windows 8.1