Version:           unspecified (using KDE 4.7.0) 
OS:                Linux

(copy/paste from unrelated bug #279656)

The problem is kind of hard to explain. If I open, say, two Dolphin windows, I
get two tabs. If I try to switch away from the second window by clicking the
first window's tab, the tabs disappear. The windows then completely lose focus,
as if they weren't there at all. I can still get the first window (with no tabs
showing) back & working by clicking another window and then clicking that first
Dolphin window in my dock. The second window is totally broken: if I click that
in my dock, then I get tabs again but the window never gets focus. The only way
to get things normal again is to close both windows and start just one instance of Dolphin again. BTW, this happens with every single app, KDE or not.

Reproducible: Always

Steps to Reproduce:
Open a second window of an already running app. Then try to switch to it using the window tab.

Actual Results:  
1. Switch to the second window happens.
2. Window tabs disappear.
3. Second window does not have focus and is therefore inoperable. (it's hard to tell which window /does/, though)
4. Try to switch back to the first window by clicking it in your dock (Avant Window Navigator) (you don't have tabs any more, remember?)
5. The window behind the two windows you were working with now has focus.
6. Both windows of your app are inoperable: they can not come up again unless you forcibly minimize and unminimize them by right-clicking the dock icon -> {minimize,restore}. **Even if they can come up, they will never get focus and will remain frozen (even if their contents do change (e.g. progress bars)).**
7. The only fix: right click the dock icon and close those windows.

Expected Results:  
Anything but this.

Widget style = Oxygen Transparent (can also reproduce with regular Oxygen).
GPU = ATI HD5450 using the r600g driver from Mesa 7.11 on kernel 3.0