Is there any way to define where the charts are installed to when installing on a PC? On my work PC, it defaults to trying to install the charts on a small network drive, which does not have the capacity for this. I need to make them install on the PC hard drive, but I can't find a way of making this happen. Am I missing something?

SkyDemon always installs charts to the SkyDemon folder under your personal Documents folder. If this is set to a network drive on your machine, then that is where they will go. You cannot set an alternative location for charts.