Please suggest a very safe way to upgrade gnome to version 3.8.1 in Ubuntu 13.04 x86_64. I used gnome3 ppa, both stable and staging, did sudo update and sudo dist-upgrade, but finally found my Unity DE (which I use by default in an administrator account), continuously crased and apport was starting in very small time gap. Now that I am in no mood of beta testing right now, still getting news like "Upgrade Gnome to 3.8 on Raring Ringtail" (FC 19 is already using it), is there a safe, step-by-step error-free method to upgrade gnome shell? Any comprehensive help will be appreciated.
System:Dell Inspiron core i3 processor,dual-booted with Win 7 64 bit.