Letters lag behind my keyboard strokes. Intrepid 32bit KDE 4.2

[Brendan]

On Thursday 19 February 2009, Steven Vollom wrote:
> > Problem-solving for me would be to stop all the programs using resources
> > and see if the problem goes away...
>
> It does, however it never happened before, so I thought maybe it was a
> glitch that could be fixed.  I notice that sometimes only 12 to 15mbs
> remain of the 512mb I now have.

That's a whoooooolllle other discussion about how memory gets used in Linux. 
The short of it is: memory gets used as a place to make things launch faster, 
called "caching", in Linux, so that free memory doesn't just hanging around 
doing nothing.