Ian, what is spd? Can you explain it for a memory noob such as myself? Or link us to the thing you were reading? Btw, here is my latest report:

I'm coming up on 20 hours straight now. I'm still jerky-mouse-free! Still FireFox crash-free. No -10810s, no crashes anywhere, actually. I had all of my apps open for a very long time, but I've closed most of them except for a couple CS3 apps, Linotype, and iTunes. I'm constantly opening and closing Safari and FireFox. Both are behaving really well. I was even running YouTube videos in them, and that's about as taxing as you can get with a web browser, short of maybe Flash games or something? I still haven't run torrents. So now I'm starting to think that my Leopard's weakness is torrents and repetitive system-logging, because otherwise I've done just about everything I can think of to make my system freak out. And as I said, I think the 10810s haven't come back because I am back to default memory timings. I'm not doing any overclocking either. Full default in BIOS. So, take that how you want, but this is my report. I'm going to leave my system on as long as it will let me and see what happens. So far it's perfect. If I could have it be this way forever, I would no longer have a single complaint, and I could stop dreaming about Tiger