Short story: my computer failed. I don't know when I'll be able to upload photos to the Diabetes 365 project again.
Long story: It's almost certainly a hardware problem. It's a laptop that's given me hardware trouble since the day I got it (March 2004). I've replaced the hard drive twice, the DVD drive once, the power cord twice, and the motherboard once. It just turned itself off, and now it will attempt to boot its little heart out, but it never gets past the "boot Windows in safe mode?" screen. The hard drive is ok and I can get the files, but I really need the software. We have a drive enclosure, but nothing can boot from that, and even better, the drive isn't a SATA drive. In many cases, just installing the software on another machine is not enough. My husband's machine used to have the software all set up, but it failed a month ago (it was even older than my laptop), and we can't get his new machine to boot from the old hard drive.
Since the problem with my machine isn't something easily accessible like the hard drive, the chances of repair are low. The case is so broken that if we opened it up all the way, it would be impossible for us (or a repair place) to get it back together again.
Bottom line: I need a "new" laptop. We haven't ever replaced this one partly because I need a matte screen, a trackpad, and Control keys on both sides of the keyboard. That rules out about 99% of laptops. The other part is, of course, that they're expensive.