Late Yesterday, very late, I updated my new 12.2 install using the apper notification icon in the taskbar. It came up with a long list of things, which I did actually read through. Some of it was obscure upgrades to libs or other system stuff, some upgrades to things like Foirefox, ntp, other useful programs. Nothing stuck out as something I did not want, so I told it to go ahead. After a while it finished, telling me I needed to reboot.
I rebooted and it was a mess. The desktop was a small square in the lower right corner. All the windows were screwed in size and position, though they all seemed to work properly otherwise. After checking some settings I decided to reboot again. Now the desktop is a band across the bottom of the screen, just on top of the taskbar about 30 pixels high. Or another way to say it is the desktop is there, but only 1280X30, instead of 1280X1024. When I open windows they are the width of the screen and about twice the hight of the desktop. Before they were sized and positioned appropriately for each program. They all seem to work correctly otherwise and do work in full screen. I am using Firefox now in full screen and have found no problems. BTW, the rest of the screen above the desktop is black. You can resize and position windows in the black space, but there is no right click context menu in that space.
Install is SUSE 12.2(X86-64), KDE 4.8.5, Release 2. Hardware is AMD Turion 64, 2.0G RAM, Nvidia G71 (7950GT) with Nvidia 304.43 drivers installed, Samsung SyncMaster 940b, LED monitor with native resolution of 1280X1024.
I have gone over all the settings in systemsettings and found nothing amiss. Resolution is set to 1280X1024; everything else looks to be the same as before.
BTW, boot splash, and KDE splash screens are all full screen and appear just as they were before.
Does anybody have a clue what happened here? What more information might you need?
Thank you for any help you can give.