I have installed the nvidia driver for my graphic card, just following some tutorials what works fine now. After this I could set the Icon size of the launcher, windows had a nice litte shadow, resolution was better and the windows showed up a nice effect when popping up an or when bringing to full-screen...

But today the this was just gone after reboot. What could this be?

Nvidia xserver-settings are availible.

I installed and reinstalled wine1.5 via the apt-get commands, so this might broke something. What can do to fix this again?

Greetings philipp

EDIT:

I went on searching and all i found was that this problem might be connected to the mode of unit, so there is 2d and 3d, but could also be something else, just because setting the mode brings no change.

EDIT 2:

the version of Ubuntu is: 12.04 and it is a 64 bit environment
the graphic card is: GeForce GT 330M

Edit 3:

Using maps.google in webGL mode does not work anymore too, it was working yesterday.

EDIT 4:

the screenshot.

btw: I think that blender is not working anymore too...

EDIT: 5

I think that the problem is closely connected to this output