The Beta channel has been updated to 18.0.1025.58 for Windows, Mac, Linux and Chrome Frame platforms 

This build has the following changes:
  1. GPU acceleration of the Canvas 2D is now reenabled.
  2. We've reenabled the image transport surface on Windows Vista and 7.  
  3. We fixed a race condition in audio. 
  4. Disabled prerender.
These changes are due to stability measures and some or all of these features may be enabled again in a future release.

If you find a new issue, please let us know by filing a bug.

Karen Grunberg
Google Chrome