I'm still trying to narrow this down... currently two programs are running, besides the ones in my system tray. It's also the first time I've used phpmychat thru Kmeleon. I'm just starting this to post the following info before it clears from my clipboard buffer. I'm going to see if I can narrow down the exact cause. I'll post back here shortly.

K-MELEON caused an invalid page fault in
module K-MELEON.EXE at 0187:00402457.
Registers:
EAX=00000000 CS=0187 EIP=00402457 EFLGS=00010246
EBX=01b7bd94 SS=018f ESP=0067eba4 EBP=0067ebdc
ECX=00000000 DS=018f ESI=006fdbb4 FS=4bcf
EDX=8168ef9c ES=018f EDI=006fe0ac GS=0000
Bytes at CS:EIP:
8b 40 20 3b 46 20 74 08 8b 45 08 83 20 00 eb 20
Stack dump:
006fdbb4 0067ebc0 0067ebf0 0067ebd8 1004275f 0067ec10 300081ca 01b7bec8 6c371018 0000000c 006fe0ac 0067ebf0 004523c8 00452200 0067ebf8 004023f2

Okay, I ran this test with that other program closed. I'm running win98 SE. Trying to duplicate this "illegal operation" worked about 17 out of 20 times.

This happened twice by accident, but this is how I was able to duplicate it:
enter a line of chat, hit enter or send. I had one other layer opened to about:blank (one time I had two other layers open, with misc web pages loaded). I enter the line of chat, click back and forth on the two layers, soon KM will crash. The first time I received an "illegal operation" message, and got that a couple more times, but the majority of the time, km would just close without any error messages. This only affects the current window and included layers. One time I didn't realize I had another window open, but I ran the test, the window and two layers I had open crashed, but the second window remained open. phpMyChat is rather sluggish, it has to refresh constantly; tonight was the first time I tried using it. I'm also on a dial-up connection, I'm sure it would work much smoother on a broadband connection, but the question is, would km crash anyway? Perhaps it's a Mozilla or Gecko bug, I haven't been able to find anything on it yet.

I checked for another site running phpMyChat and found one at
http://www.fictionaddiction.net/chat/phpMyChat.php3

the first time earlier tonight when I encountered this error was on the copy that I just installed at http://www.ponderations.net/chat/ You're welcome to use that one and run as many tests as you care to, I'll clear it with my friend who's the actual webmaster of that site.

If you'd like any more information, let me know. Hopefully I didn't waste anyone's time writing this, including my own. K-meleon normally doesn't crash on my computer. Also when I updated to 0.8.1 I uninstalled .8.0 , the only thing I migrated over was my bookmarks file.