I've had my 680 for a couple of years, and know it well. But suddenly, I find my available memory decreasing on a daily basis! I have cleared cache, and routinely remove old call logs, etc. I have a feeling that every time I surf the web, I am adding to my internal memory load. In Filez, there are many many files called HTTPSTREAM, with numbers after them. Is that all the web-surfing I've done? Is it safe to delete them? I can move programs to my memory card, but don't really want to. Thoughts?