Hi, I had the same problem and I fixed it by editing /usr/share/menu/synaptic and changing the command to "/usr/bin/gksu -g /usr/sbin/synaptic" (added the -g)
-- With desktop effects enabled when using gksu system gets grey and only responds to keyboard https://bugs.launchpad.net/bugs/106008 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs