i don't think it is the downloads, because yesterday is the first day it crashed, and I haven't downloaded in a while. It seems to happen mostly when I start clicking really fast, and as this is the biggest zoo I've had, and my RAM isn't the highest, I think that is the problem.
Edit: Ah never mind, it just crashed again and I wasn't clicking at all :><
Edit2: Hmm, I happened to read that Invisible Fence conflicts with Fences Forever. Although it didn't sink in at the time I read it. But I have them both. could that be the problem, and if it is, Would it work OK if I took Fences Forever out and still work on a zoo that was built with it?