For some reason, I can only see the thread list frame at the moment. I've cleared my cache and history, rebooted, logged out and back in, everything I can think of, but it still won't show me the actual thread frame on the right. What am I doing wrong?

Whatever version the latest Firefox is, by the way.

I'd give you the answer but you can't read it anyway.

I know. It's a conundrum, right enough.

Well how did you see that?

Is it resized to be 100%? Check on the far right edge with the mouse if you can resize the frame.

Well, that was weird. I saw your message in Lite mode, opened Teh in another tab, and there was the content frame taking up the right-hand inch or so of the screen. It wasn't there the last time I tried.

So, yes, that's what it was. Ta.