I forgot to mention, I have followed steps mentioned in this link https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/ch-TigerVNC.html for configuring vnc. I have also tried upgrading VNCserver but that didn't help either. Regards Hersh On 28 June 2016 at 15:39, Hersh <parikhh1 at gmail.com> wrote: > Hi, > > I have been using VNC on CentOS 7 server from last couple of months and it > was running all fine till last night. Unfortunately, there was an abrupt > power failure and system got restarted. Now, when I try to login with > VNCviwer, it thrown an error message- "*Gnome - oh no! Something has > gone wrong "* with a logout option. When I click on logout, I see > black/dark gray screen with 3 check boxes. > > I googled to figure out a solution and tried several solutions but could > not fix the problem. Any suggestion would be very helpful. > > Regards > Hersh >