Clicking task manager icon can crash me out to login

[canadaist]

Frequently, often even two and three times a day, my desktop crashes ( probably X, maybe kde I dont know),
when I click on an icon in the task manager. I cannot MAKE it happen, great majority of clicks act as expected, 98 to 99%

Any thoughts? I have searched thru a few hundred comments on x crashes to find nothing related.

.xsession errors doesnt seem to notice the crashes.

[doktor5000]

What task manager do you use in KDE - the default Mageia one or the classic task manager?
Also, do you have desktop effects enabled, and what graphics card and driver do you use?

[canadaist]

What task manager do you use in KDE - the default Mageia one or the classic task manager?

Classic, Task Manager.

Also, do you have desktop effects enabled,

Yes a few.

and what graphics card and driver do you use?

AMD apu ((EDIT - AMD A8-5600K APU with Radeon(tm) HD Graphics)) no separate card, the latest proprietary driver.
I cannot say whether it helps or hinders, I have answered yes on some requests to chose, but not others. Installs dont normally go directly to AMD's drivers, and I've installed twice over the last 4 months, new machine, then upgrade to 4 failed, and I needed to install.

But yes at the moment, I recently did chose AMDs, but the problem may have covered both drivers.