Thanks. I didn't know about those, and I like to keep a "clean machine." I just ran those, they got rid of some stuff, and at least I can say nothing is broken so far! Is there anything similar for (a) generally maintaining system happiness (like RegClean on WinXP/Win2000)? (b) defragmenting the drive? (I think it's when I run fsck on the SD card on which I have a system, but from a Device Memory boot, it tells me something like "0.7% non-contiguous") (c) Is there a way to run something like fsck on the Device Memory? What I do for the SD card (on which I have the system I usually run) is enter, as root, fsck -fy /dev/mmcblk0p2 -- but I do this when I've booted from the Device Memory, not from the SD card. So, is there an equivalent way to keep the Device Memory happy?