Of probably no interest to anyone but myself, but someone pointed me in the direction of knowing why my MT4 install went kerblooey last year: it wasn’t MT4, it was my host, which apparently chokes off script calls after about ten seconds, which is no good when you have a site as large as mine. Which is more than a little annoying, since I remember calling my host and asking them if there were any reason my MT install wouldn’t be working. Their answer: no, not really. Thus sending me into a two-month spiral of anger and confusion when my site just stopped working. Liars! I will have my revenge! Seriously, though, this is lame.
So to all and sundry at Movable Type, my apologies. I’m sorry my host hates you.