Opening Terminal window in natty

Can you post a screenshot on the web illustrating this problem (you could use a site like http://postimage.org), and link to it here?

sure, here it is.
http://postimage.org/image/13fvgz5fo/

http://postimage.org/image/13fys1uf8/

it also happens with other apps. I posted a sample. ctrl+alt+T seems to work intermittently too. my PrtSc button also doesn't work.

these things work in unity2d though.

If you hold ALT, can you drag the console down?

There're no window decorations, hence depends which session you're logged in try
metacity --replace
compiz --replace
unity --replace

If this doesn't survive a logout or reboot, put it in startup applications.
Or take a look in gconf-editor:
/desktop/gnome/session/required_components/windowmanager

still the same. and 3d doesnt work either

>> which session you're logged in?
Gnome (Ubuntu-classic), Unity (Ubuntu)?
Example of login window.
http://i.imgur.com/lFmMj.png

Verify if your graphic card has Unity capability.
https://wiki.ubuntu.com/DemystifyingUnityGraphicsHardwareRequirements

Please open a terminal: ctrl+alt+t
Please post outputs of:
sudo lshw -C video
usr/lib/nux/unity_support_test -p
gconftool-2 --get /desktop/gnome/session/required_components/windowmanager

lshw -C video output:

  *-display
       description: VGA compatible controller
       product: Robson CE [AMD Radeon HD 6300 Series]
       vendor: ATI Technologies Inc
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=radeon latency=0
       resources: irq:42 memory:b0000000-bfffffff memory:c4000000-c401ffff ioport:4000(size=256) memory:c4040000-c405ffff

usr/lib/nux/unity_support_test -p Output:

bash: usr/lib/nux/unity_support_test: No such file or directory

gconftool-2 --get /desktop/gnome/session/required_components/windowmanager Output:

unity

Not sure how to check if the following is installed or how to install these items:

OpenGL Extensions required

    Framebuffer Object
    Rectangle Textures
    Non power of 2 textures
    Vertex programs
    Fragment programs
    buffer objects
    GLSL shader support (Optional)

Thanks for outputs and sorry, my bad, there was a slash missing, please try again.
/usr/lib/nux/unity_support_test -p

Did you try additional drivers? (it's in system settings)

Found this thread about radeon 6300 in french forum.
http://translate.google.de/translate?js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&sl=fr&tl=en&u=http%3A%2F%2Fforum.ubuntu-fr.org%2Fviewtopic.php%3Fid%3D445815

It wont solve your problem but the intel video chip is working on g470 no real need for extra gpu :-)

--
http://rzr.online.fr/q/lenovo