I'm on a Macbook Pro running Leopard and I have 48+ GB free, but last night and all morning I've been getting a warning periodically saying that my Startup Disc is full. When I open a finder window, it will say that I have 0 KB free, then slowly go up to 48 GB. Also, when I search for something in Finder, the search results will appear disappear and reappear continually. I'm completely lost. If anyone could help me I'd greatly appreciate it.