@graham - checking again more thoroughly. straight out of terminal though:
:~$ sudo apt-get install ocl-icd-libopencl1 Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: nvidia-libopencl1-346 The following NEW packages will be installed: ocl-icd-libopencl1 0 upgraded, 1 newly installed, 1 to remove and 0 not upgraded. Need to get 28.1 kB of archives. After this operation, 43.0 kB of additional disk space will be used. Do you want to continue? [Y/n] -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-304 in Ubuntu. https://bugs.launchpad.net/bugs/1247736 Title: [SRU] nvidia-opencl-icd-* should not conflicts/replaces on opencl-icd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-304/+bug/1247736/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp