I was reading my emailed comments, and scrolled down as a person will do, and the system froze. Completely. I had to press the power button to get it to reboot.
This isn't the first time this has happened. I don't think it's specific to LJ comments--they're hardly the only email I get with URLs in it.
At the moment, I'm running Eudora Lite. If anyone can suggest a better email client, please do. For the purposes of this discussion, a better client would let me download my mail; sort it into mailboxes/filters by subject line, sender, and recipient; run under Windows 98; and be stable.
(I also use mutt on the panix shell, from time to time, notably when Eudora can't get through to panix for some reason.)