Windows not showing

[Smorkster]

When I log in to KDE, neither the panel nor any windows are showing.
The context menu is showing when I right-click on the desktop, but when I try to open a window nothing is showing.
I can see the outline of all the open windows when I Alt+Tab, but nothing more.

Please help.

[Beanpole]

A couple quick questions:
Which version of PCBSD is this?
Is the menu bar at the bottom of the screen visible?
If not, is it set to auto-hide? (scroll your mouse to the bottom of the screen and see if it pops up)
How are you trying to open a window?

[Smorkster]

* 8.2
* Nope
* Nope, and nope.
* From the icons on the desktop and from the contextmenu on the desktop.
I think this is very weird, because I don't think that I have changed anything in KDE before this happened.
I have installed Gnome and Xfce, but I can't think of any changes in there that should change the behavior of KDE.

[Beanpole]

I finally reproduced this.
I installed PC-BSD 8.2-32bit in virtualbox and started it -- worked fine.
Shutdown the instance, selected the 3D acceleration option on the video settings tab for virtualbox (and gave it a bit more video memory), then started it up again.
Now when KDE started it was missing the task bar, as well as not opening any program via desktop icon. Even hitting alt-F2 and running the command "konsole" or "xterm" did not open a terminal.
Shutdown the instance, turned off 3D acceleration option in virtualbox and restarted it... No change.
Shutdown the instance, turned down the video memory back to the default and restarted... No change.

Needless to say, at this point I am thinking that it looks like it might need to be reinstalled. It appears that virtualbox destroyed something in the install, and I don't see any way of fixing it at this moment. I did read that the 3D acceleration option for virtualbox is still experimental, so maybe it is some kind of bug there.....

I am going to keep trying a few different fixes, and if any of them work I will let you know.

[Liet_]

There is a chance that it's only an KDE issue
I've experienced a similar issue on kubuntu with KDE 4.4. It is the fault of 3D acceleration not working properly.
If able, start a terminal session, uninstall properitary driver packages if using any, delete video config files, reboot your system. This should return kde to like first boot state.
Worked for me, but need further confirmation.