A few minutes ago, I got a new error message while writing a PM:
"You have timed out." (The whole text of the PM *and* all addressee info disappeared. Luckily, I had copied the text.)
I didn't have the PM open that long -- maybe 10-12 minutes, which is certainly less than other times I've been laboring over a long PM.
Could this be related to problems I've been having for the last 48 hours accessing this Forum? When I hit the Fan-Forum button on the main comic page, the browser spins for about 60 seconds, then times out. If I just close that browser tab and start fresh, it still often doesn't load. But if I hit the "Refresh" key on the browser tab that timed out, generally it'll load immediately.
EDIT:
Aaaargh, the "Timed Out" problem happened again! I was PM'ing Unlos just now, with the PM open barely 5 minutes and no elaborate links etc. -- and it STILL went blank!
The poor dumb Forum seems to be buckling under the strain of being used intensely...