While compiling our newsletters, the site frequently gives the "oops" dialog box forcing a refresh and causing us to lose any work done since last saving and sometimes even that work is not saved. The save button also frequently becomes unavailable while working which forces a reload/refresh of the page. While I have gotten in the habit of saving after Every. Single. change I make, these refreshes waste a lot of valuable time. A newsletter that may take me 2 hours to compile working straight through can often take up to 4 hours because of material lost or time spent copying, refreshing and pasting.