Last night we upgraded from 3.8.2 to 3.9.3 (latest release from OF site) and the graphs do not work fo us either. Our setup is a virtualized copy of CentOS 6.5 x64. The graphs and charts were working on our previous install. We did the upgrade by performing an rpm -Uhvv upgrade.
Any thoughts or suggestions would be greatly appreciated!
Thanks,
Ozzie