Update: had this happen again today, thankfully while I was in a training server and not in a fight on CB. I found the following in Event Viewer under System right when it occurred:    Application popup: Windows - Virtual Memory Minimum Too Low : Your system is low on virtual memory. Windows is increasing the size of your virtual memory paging file. During this process, memory requests for some applications may be denied. For more information, see Help.   I was unable to see