1. A non-transitory computer-readable storage medium comprising instructions that, when executed by a computer, enable a graphical user interface to be displayed, wherein the graphical user interface displays information related to a virtual machine network, the graphical user interface comprising: a chart comprising error indicators organized in rows and columns, wherein an error indicator corresponds to an entity in the virtual machine network at a time and indicates a state of the entity at that time; and a zoom navigator window that indicates a portion of error indicators displayed in the chart, wherein the portion of error indicators is part of a set of error indicators corresponding to error indicators within a defined scope.