My D1 is getting low on memory and its causing lots of redraw. I went into ASTRO and delted some folders that were from APPs that I uninstalled and were apparently left behind. That helped for a couple days, but now it's happening again. What else can I delete/ clean up? I seem to have every update that Handcent has ever done. Do I need to keep them all, or just the newest? What "caches" should I be deleting? Do I need an app to delete cache, or can I do that through the regular phone menu. I'm not rooted if that matters, and everything that can be is moved to the SD card.