Comment 18 for bug 979350

I don't know if this will make much difference, but worth a shot if the slideshow is responsible for that much:

ubiquity (2.10.12) precise-proposed; urgency=low

  * Fix download verification to handle epochs correctly, and add a little
    more logging so that we can debug any further errors along these lines.
  * GTK frontend:
    - Disable WebKit's cache, since the slideshow doesn't have a significant
      browsing interface and the cache is memory-hungry. This may help with
      LP #979350.

 -- Colin Watson <email address hidden> Fri, 13 Apr 2012 19:49:13 +0100