Hello everyone, I just installed the CentOS 6.8 updates from the CR repository, and then I rebooted the server. I run some software to make weather images on a website, and I have run into a problem. When I do it, the software, as it tries to plot the image, says: Xwindow: unable to connect to display It just stopped working when I did the updates. Has anyone else seen this, or have an idea on what to look for to get this fixed? To plot it, I use syntax's of machine:0 machine:1 machine:2 Which lets me plot it using virtual frame buffers (Xvfb). When I do xhost + servername , it says it has been added to the control list...but it still doesn't fix the issue. Does anyone know what I may be doing wrong? Gilbert ******************************************************************************* Gilbert Sebenste ******** (My opinions only!) ****** *******************************************************************************