I know I should probably post this in software, but I think it's possible it might be hardware. Every time I leave gtk-gnutella running in the background downloading files, I wake up the next morning to find that sometime in the night it's done a kernel panic. I've searched the log files but can find no reference to any panic, either in dmesg, or /var/log/messages. It's difficult for me to determine whether this is gnutella's fault or not because I've encountered panics before when doing some heavy file transfers using NFS. Gnutella seems to do it consistently. Is this a hardware problem or a software problem? Am I looking at bad motherboard or RAM?

I've had hardware issues before, and though I've replaced the motherboard and one of two memory sticks, I don't know if I'm looking at the same problem or not. Memtest86 crashes in Test 1, so I can't seem to be able to use that to test the memory. Haven't used Prime95 yet, that's scheduled for this evening. Here's some history on my hardware issues..

Thanks.