F9/KDE4: Can't access screen resolution changes after software install

[Don Levey]

Don Levey wrote:
> Rex Dieter wrote:
>> Don Levey wrote:
>>
>>> Based upon a mention in Linux Journal, I installed the Penumbra: Black
>>> Plague demo yesterday on my laptop:
>> ...
>>> What is particularly odd is that when logging in via KDE it *starts up*
>>> in the correct resolution, but eventually changes. What happened to my
>>> machine, and how do I get it back? It's probably just a configuration
>>> change in one file, but I don't know which one.
>>
>> Where did you get Penumbra from?  I'd suggest asking them what the 
>> installer
>> did you your machine.
>>
>> -- Rex
>>
>>
> I got it from the publisher 
> (http://www.penumbrablackplague.com/site/index.php).  I've also posted 
> on their forum, but thought that this might also be a more general 
> question on how to (mis)configure KDE4.
> 
>  -Don
> 

As a followup:
If anyone knows how to simply revert to the default KDE configuration 
(deleting a config file or directory, for example) that would be useful too.

  -Don