Comment 9 for bug 764195

Unfortunately none of the above worked for me. I have been able to use the intel drivers for integrate graphics only by using the script from comment #7 http://piotr.gabryjeluk.pl/dev:ubuntu-11-04-natty-on-sony-vaio-sz640

This was necessary because nvidia drivers presence apparently breaks the 3d support from the intel.

Also, when using the nvidia card I the 'additional drivers' kept insisting that the nvidia driver was installed, but not in use. I thought I might be using nouveau by accident, but I've removed it and still it was denying the use of the proprietary driver (though compiz support was there)