KDE 4.3 freezes too often now

[Guido Pinkernell]

Hi list,

it happens several times a day while using firefox or konqueror as an internet 
browser, that KDE 4.3 freezes completely. It appears that a file download 
still continues in the background, but the keyboard is dead, and the mouse 
pointer still moves but does nothing else. There is no way to get the computer 
back to work except doing a cold reboot.

I have no idea why this happens. What I know is that this has not happened yet 
with other apps than firefox or konqueror. And I can't repeat this behaviour 
by, say, going back to that internet site on which KDE has collapsed last.

So my two questions:

Is there a way of logging all KDE activity into a file so that I would be able 
to track down what happens? (I have checked with help and kde.org but can't 
find any information.)

I don't like cold reboot. Is there any other way of shutting down the system? 
However, keyboard and mouse don't work, so I guess there isn't any.

System info:

openSUSE 11.1, KDE 4.3 release 155

Thank you for your help!

Guido
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