Well, the laptop got moved last night (this is to do with my parents being here till the weekend) so this morning I had to twiddle it again. I'd got it working when I shut the lid (leaving the laptop still running), but wouldn't I just have to have one more fiddle to make sure the plug stayed in properly. Next thing I knew, the laptop was booting up (off the DOS floppy I'd previously made and failed to remove from the drive), having suddenly reset itself. I was not impressed. Oh well, the disks probably all needed fscking anyway since it's been so long since the last time, but it doesn't half take a long time (on a P150 with 3200MB of mounted disk).
Last boot: Sun Jan 19 22:25:50 GMT 2003 (after patching glibc)
Uptime: don't know, of course, but probably about 100 days.