Works for me. And I have exactly the same version as you. (But I am running Xubuntu if that matters).

18.0.1025.151 (Developer Build 130497 Linux) Ubuntu 12.04

For this kind of bug you should specify your graphics module, GLX setup, etc...

Works for me on Chrome 18.0.1025.162/Ubuntu 11.04

Note: Chrome, not Chromium.

Same here.

1) Restricted Drivers

2) about:flags disable software rendering blacklist